12534531 has 4 divisors (see below), whose sum is σ = 16712712. Its totient is φ = 8356352.

The previous prime is 12534523. The next prime is 12534539. The reversal of 12534531 is 13543521.

12534531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13543521 = 3 ⋅4514507.

It is an interprime number because it is at equal distance from previous prime (12534523) and next prime (12534539).

It is a cyclic number.

It is not a de Polignac number, because 12534531 - 2³ = 12534523 is a prime.

It is a super-2 number, since 2×12534531² = 314228934779922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12534539) 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, 2089086 + ... + 2089091.

It is an arithmetic number, because the mean of its divisors is an integer number (4178178).

Almost surely, 2^12534531 is an apocalyptic number.

12534531 is a deficient number, since it is larger than the sum of its proper divisors (4178181).

12534531 is an equidigital number, since it uses as much as digits as its factorization.

12534531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178180.

The product of its digits is 1800, while the sum is 24.

The square root of 12534531 is about 3540.4139588472. The cubic root of 12534531 is about 232.2929501356.

The spelling of 12534531 in words is "twelve million, five hundred thirty-four thousand, five hundred thirty-one".