12512970 has 24 divisors (see below), whose sum is σ = 32533956. Its totient is φ = 3336768.

The previous prime is 12512959. The next prime is 12512971. The reversal of 12512970 is 7921521.

It can be written as a sum of positive squares in 2 ways, for example, as 12510369 + 2601 = 3537^2 + 51^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12512971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69427 + ... + 69606.

Almost surely, 2^12512970 is an apocalyptic number.

12512970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12512970 is an abundant number, since it is smaller than the sum of its proper divisors (20020986).

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

12512970 is a wasteful number, since it uses less digits than its factorization.

12512970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139046 (or 139043 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 12512970 is about 3537.3676653693. The cubic root of 12512970 is about 232.1596824773.

The spelling of 12512970 in words is "twelve million, five hundred twelve thousand, nine hundred seventy".