12641475 has 72 divisors (see below), whose sum is σ = 26387200. Its totient is φ = 5227200.

The previous prime is 12641443. The next prime is 12641509. The reversal of 12641475 is 57414621.

It is not a de Polignac number, because 12641475 - 2⁵ = 12641443 is a prime.

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, 63426 + ... + 63624.

Almost surely, 2^12641475 is an apocalyptic number.

12641475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12641475 is an abundant number, since it is smaller than the sum of its proper divisors (13745725).

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

12641475 is a wasteful number, since it uses less digits than its factorization.

12641475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 225 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 12641475 is about 3555.4851989567. The cubic root of 12641475 is about 232.9517174787.

The spelling of 12641475 in words is "twelve million, six hundred forty-one thousand, four hundred seventy-five".