12831975 has 72 divisors (see below), whose sum is σ = 25592112. Its totient is φ = 6105600.

The previous prime is 12831967. The next prime is 12831983. The reversal of 12831975 is 57913821.

It is an interprime number because it is at equal distance from previous prime (12831967) and next prime (12831983).

It is not a de Polignac number, because 12831975 - 2³ = 12831967 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 119872 + ... + 119978.

It is an arithmetic number, because the mean of its divisors is an integer number (355446).

Almost surely, 2^12831975 is an apocalyptic number.

12831975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12831975 is the 2925-th pentagonal number.

12831975 is a deficient number, since it is larger than the sum of its proper divisors (12760137).

12831975 is a wasteful number, since it uses less digits than its factorization.

12831975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 169 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 12831975 is about 3582.1746188593. The cubic root of 12831975 is about 234.1160393133.

The spelling of 12831975 in words is "twelve million, eight hundred thirty-one thousand, nine hundred seventy-five".