12652531 has 4 divisors (see below), whose sum is σ = 12891312. Its totient is φ = 12413752.

The previous prime is 12652517. The next prime is 12652567. The reversal of 12652531 is 13525621.

12652531 is digitally balanced in base 3, 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: 13525621 = 433 ⋅31237.

It is a cyclic number.

It is not a de Polignac number, because 12652531 - 2¹⁹ = 12128243 is a prime.

It is a super-2 number, since 2×12652531² = 320173081411922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12652496 and 12652505.

It is not an unprimeable number, because it can be changed into a prime (12652511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119311 + ... + 119416.

It is an arithmetic number, because the mean of its divisors is an integer number (3222828).

Almost surely, 2^12652531 is an apocalyptic number.

12652531 is a deficient number, since it is larger than the sum of its proper divisors (238781).

12652531 is an equidigital number, since it uses as much as digits as its factorization.

12652531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238780.

The product of its digits is 1800, while the sum is 25.

The square root of 12652531 is about 3557.0396399253. The cubic root of 12652531 is about 233.0196094433.

It can be divided in two parts, 1265 and 2531, that multiplied together give a triangular number (3201715 = T₂₅₃₀).

The spelling of 12652531 in words is "twelve million, six hundred fifty-two thousand, five hundred thirty-one".