1140104821 has 8 divisors (see below), whose sum is σ = 1150703064. Its totient is φ = 1129539840.

The previous prime is 1140104809. The next prime is 1140104843. The reversal of 1140104821 is 1284010411.

It can be written as a sum of positive squares in 4 ways, for example, as 220195921 + 919908900 = 14839^2 + 30330^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1140104821 - 2⁹ = 1140104309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1140104792 and 1140104801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140104321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63391 + ... + 79363.

It is an arithmetic number, because the mean of its divisors is an integer number (143837883).

Almost surely, 2^1140104821 is an apocalyptic number.

It is an amenable number.

1140104821 is a deficient number, since it is larger than the sum of its proper divisors (10598243).

1140104821 is a wasteful number, since it uses less digits than its factorization.

1140104821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16631.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1140104821 is about 33765.4382616308. The cubic root of 1140104821 is about 1044.6759435665.

The spelling of 1140104821 in words is "one billion, one hundred forty million, one hundred four thousand, eight hundred twenty-one".