12974985 has 48 divisors (see below), whose sum is σ = 23849280. Its totient is φ = 6765120.

The previous prime is 12974959. The next prime is 12974987. The reversal of 12974985 is 58947921.

It is not a de Polignac number, because 12974985 - 2⁸ = 12974729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12974985.

It is not an unprimeable number, because it can be changed into a prime (12974987) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71595 + ... + 71775.

It is an arithmetic number, because the mean of its divisors is an integer number (496860).

Almost surely, 2^12974985 is an apocalyptic number.

12974985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12974985 is a deficient number, since it is larger than the sum of its proper divisors (10874295).

12974985 is an equidigital number, since it uses as much as digits as its factorization.

12974985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 248 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 12974985 is about 3602.0806487362. The cubic root of 12974985 is about 234.9825549145.

The spelling of 12974985 in words is "twelve million, nine hundred seventy-four thousand, nine hundred eighty-five".