12531951 has 12 divisors (see below), whose sum is σ = 18133960. Its totient is φ = 8339760.

The previous prime is 12531919. The next prime is 12531977. The reversal of 12531951 is 15913521.

12531951 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12531951 - 2⁵ = 12531919 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 (12531151) 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 11 ways as a sum of consecutive naturals, for example, 6921 + ... + 8541.

Almost surely, 2^12531951 is an apocalyptic number.

12531951 is a deficient number, since it is larger than the sum of its proper divisors (5602009).

12531951 is a wasteful number, since it uses less digits than its factorization.

12531951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486 (or 2483 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 12531951 is about 3540.0495759240. The cubic root of 12531951 is about 232.2770113146.

The spelling of 12531951 in words is "twelve million, five hundred thirty-one thousand, nine hundred fifty-one".