1104194521 has 4 divisors (see below), whose sum is σ = 1104265012. Its totient is φ = 1104124032.

The previous prime is 1104194513. The next prime is 1104194537. The reversal of 1104194521 is 1254914011.

1104194521 is a nontrivial binomial coefficient, being equal to C(46994, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 404010000 + 700184521 = 20100^2 + 26461^2 .

It is a 3-Lehmer number, since φ(1104194521) divides (1104194521-1)³.

It is a cyclic number.

It is not a de Polignac number, because 1104194521 - 2³ = 1104194513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1104194521.

It is not an unprimeable number, because it can be changed into a prime (1104194501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 46993.

It is an arithmetic number, because the mean of its divisors is an integer number (276066253).

It is a Poulet number, since it divides 2^1104194520-1.

Almost surely, 2^1104194521 is an apocalyptic number.

1104194521 is the 46993-rd triangular number and also the 23497-th hexagonal number.

1104194521 is the 15665-th centered nonagonal number.

It is an amenable number.

1104194521 is a deficient number, since it is larger than the sum of its proper divisors (70491).

1104194521 is an equidigital number, since it uses as much as digits as its factorization.

1104194521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70490.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1104194521 is about 33229.4225198092. The cubic root of 1104194521 is about 1033.5905483753.

It can be divided in two parts, 1104 and 194521, that added together give a triangular number (195625 = T₆₂₅).

The spelling of 1104194521 in words is "one billion, one hundred four million, one hundred ninety-four thousand, five hundred twenty-one".