12500531 has 8 divisors (see below), whose sum is σ = 12852000. Its totient is φ = 12151360.

The previous prime is 12500519. The next prime is 12500539. The reversal of 12500531 is 13500521.

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 12500531 - 2²² = 8306227 is a prime.

It is a super-2 number, since 2×12500531² = 312526550563922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12500539) 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, 20570 + ... + 21168.

It is an arithmetic number, because the mean of its divisors is an integer number (1606500).

Almost surely, 2^12500531 is an apocalyptic number.

12500531 is a deficient number, since it is larger than the sum of its proper divisors (351469).

12500531 is an equidigital number, since it uses as much as digits as its factorization.

12500531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 12500531 is about 3535.6089998754. The cubic root of 12500531 is about 232.0827278790.

It can be divided in two parts, 12500 and 531, that added together give a palindrome (13031).

The spelling of 12500531 in words is "twelve million, five hundred thousand, five hundred thirty-one".