12531607 has 6 divisors (see below), whose sum is σ = 13774544. Its totient is φ = 11392260.

The previous prime is 12531593. The next prime is 12531637. The reversal of 12531607 is 70613521.

12531607 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12531607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12531637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51663 + ... + 51904.

Almost surely, 2^12531607 is an apocalyptic number.

12531607 is a deficient number, since it is larger than the sum of its proper divisors (1242937).

12531607 is a wasteful number, since it uses less digits than its factorization.

12531607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103589 (or 103578 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 12531607 is about 3540.0009887004. Note that the first 3 decimals coincide. The cubic root of 12531607 is about 232.2748859732.

The spelling of 12531607 in words is "twelve million, five hundred thirty-one thousand, six hundred seven".