16104531 has 16 divisors (see below), whose sum is σ = 23132160. Its totient is φ = 9936960.

The previous prime is 16104521. The next prime is 16104601. The reversal of 16104531 is 13540161.

It is not a de Polignac number, because 16104531 - 2⁶ = 16104467 is a prime.

It is a super-2 number, since 2×16104531² = 518711837459922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16104498 and 16104507.

It is not an unprimeable number, because it can be changed into a prime (16104511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1626 + ... + 5903.

It is an arithmetic number, because the mean of its divisors is an integer number (1445760).

Almost surely, 2^16104531 is an apocalyptic number.

16104531 is a deficient number, since it is larger than the sum of its proper divisors (7027629).

16104531 is a wasteful number, since it uses less digits than its factorization.

16104531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7586.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 16104531 is about 4013.0451031604. The cubic root of 16104531 is about 252.5317726250.

Adding to 16104531 its reverse (13540161), we get a palindrome (29644692).

The spelling of 16104531 in words is "sixteen million, one hundred four thousand, five hundred thirty-one".