12912970 has 72 divisors (see below), whose sum is σ = 28927044. Its totient is φ = 4136832.

The previous prime is 12912967. The next prime is 12912971. The reversal of 12912970 is 7921921.

It can be written as a sum of positive squares in 2 ways, for example, as 12895281 + 17689 = 3591^2 + 133^2 .

It is not an unprimeable number, because it can be changed into a prime (12912971) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 176854 + ... + 176926.

Almost surely, 2^12912970 is an apocalyptic number.

12912970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12912970 is an abundant number, since it is smaller than the sum of its proper divisors (16014074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12912970 is a wasteful number, since it uses less digits than its factorization.

12912970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 12912970 is about 3593.4621189043. The cubic root of 12912970 is about 234.6075841093.

The spelling of 12912970 in words is "twelve million, nine hundred twelve thousand, nine hundred seventy".