13104731 has 4 divisors (see below), whose sum is σ = 13300392. Its totient is φ = 12909072.

The previous prime is 13104719. The next prime is 13104761. The reversal of 13104731 is 13740131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13104731 - 2¹⁰ = 13103707 is a prime.

It is a super-2 number, since 2×13104731² = 343467949164722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13104761) 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, 97730 + ... + 97863.

It is an arithmetic number, because the mean of its divisors is an integer number (3325098).

Almost surely, 2^13104731 is an apocalyptic number.

13104731 is a deficient number, since it is larger than the sum of its proper divisors (195661).

13104731 is an equidigital number, since it uses as much as digits as its factorization.

13104731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195660.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 13104731 is about 3620.0457179434. The cubic root of 13104731 is about 235.7632105013.

Adding to 13104731 its reverse (13740131), we get a palindrome (26844862).

The spelling of 13104731 in words is "thirteen million, one hundred four thousand, seven hundred thirty-one".