12495645 has 24 divisors (see below), whose sum is σ = 21969792. Its totient is φ = 6568800.

The previous prime is 12495599. The next prime is 12495661. The reversal of 12495645 is 54659421.

12495645 is a `hidden beast` number, since 1 + 2 + 4 + 9 + 5 + 645 = 666.

It is not a de Polignac number, because 12495645 - 2¹¹ = 12493597 is a prime.

It is a super-2 number, since 2×12495645² = 312282287932050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1240 + ... + 5150.

It is an arithmetic number, because the mean of its divisors is an integer number (915408).

Almost surely, 2^12495645 is an apocalyptic number.

12495645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12495645 is a deficient number, since it is larger than the sum of its proper divisors (9474147).

12495645 is a wasteful number, since it uses less digits than its factorization.

12495645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993 (or 3990 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 12495645 is about 3534.9179622730. The cubic root of 12495645 is about 232.0524863908.

The spelling of 12495645 in words is "twelve million, four hundred ninety-five thousand, six hundred forty-five".