1104131551 has 4 divisors (see below), whose sum is σ = 1105448400. Its totient is φ = 1102814704.

The previous prime is 1104131549. The next prime is 1104131573. The reversal of 1104131551 is 1551314011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1551314011 = 13 ⋅119331847.

It is a cyclic number.

It is not a de Polignac number, because 1104131551 - 2¹ = 1104131549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104131051) 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, 657166 + ... + 658843.

It is an arithmetic number, because the mean of its divisors is an integer number (276362100).

Almost surely, 2^1104131551 is an apocalyptic number.

1104131551 is a deficient number, since it is larger than the sum of its proper divisors (1316849).

1104131551 is an equidigital number, since it uses as much as digits as its factorization.

1104131551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316848.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 1104131551 is about 33228.4750026239. The cubic root of 1104131551 is about 1033.5709001362.

Adding to 1104131551 its reverse (1551314011), we get a palindrome (2655445562).

The spelling of 1104131551 in words is "one billion, one hundred four million, one hundred thirty-one thousand, five hundred fifty-one".