104331531 has 16 divisors (see below), whose sum is σ = 144380160. Its totient is φ = 66934560.

The previous prime is 104331517. The next prime is 104331541. The reversal of 104331531 is 135133401.

It is not a de Polignac number, because 104331531 - 2⁶ = 104331467 is a prime.

It is a super-2 number, since 2×104331531² = 21770136721607922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 104331498 and 104331507.

It is not an unprimeable number, because it can be changed into a prime (104331541) 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, 26986 + ... + 30608.

It is an arithmetic number, because the mean of its divisors is an integer number (9023760).

Almost surely, 2^104331531 is an apocalyptic number.

104331531 is a deficient number, since it is larger than the sum of its proper divisors (40048629).

104331531 is a wasteful number, since it uses less digits than its factorization.

104331531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 104331531 is about 10214.2807382605. The cubic root of 104331531 is about 470.7661128423.

Adding to 104331531 its reverse (135133401), we get a palindrome (239464932).

The spelling of 104331531 in words is "one hundred four million, three hundred thirty-one thousand, five hundred thirty-one".