12531395 has 4 divisors (see below), whose sum is σ = 15037680. Its totient is φ = 10025112.

The previous prime is 12531391. The next prime is 12531437. The reversal of 12531395 is 59313521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12531395 - 2² = 12531391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12531391) 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, 1253135 + ... + 1253144.

It is an arithmetic number, because the mean of its divisors is an integer number (3759420).

Almost surely, 2^12531395 is an apocalyptic number.

12531395 is a deficient number, since it is larger than the sum of its proper divisors (2506285).

12531395 is an equidigital number, since it uses as much as digits as its factorization.

12531395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506284.

The product of its digits is 4050, while the sum is 29.

The square root of 12531395 is about 3539.9710450793. The cubic root of 12531395 is about 232.2735761504.

The spelling of 12531395 in words is "twelve million, five hundred thirty-one thousand, three hundred ninety-five".