12542975 has 6 divisors (see below), whose sum is σ = 15553320. Its totient is φ = 10034360.

The previous prime is 12542951. The next prime is 12542989. The reversal of 12542975 is 57924521.

It is not a de Polignac number, because 12542975 - 2⁶ = 12542911 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250835 + ... + 250884.

It is an arithmetic number, because the mean of its divisors is an integer number (2592220).

Almost surely, 2^12542975 is an apocalyptic number.

12542975 is a deficient number, since it is larger than the sum of its proper divisors (3010345).

12542975 is an equidigital number, since it uses as much as digits as its factorization.

12542975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501729 (or 501724 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 12542975 is about 3541.6062739949. The cubic root of 12542975 is about 232.3451005080.

The spelling of 12542975 in words is "twelve million, five hundred forty-two thousand, nine hundred seventy-five".