12649057 has 8 divisors (see below), whose sum is σ = 13291200. Its totient is φ = 12014640.

The previous prime is 12649051. The next prime is 12649061. The reversal of 12649057 is 75094621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12649057 - 2¹¹ = 12647009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12649051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1582 + ... + 5272.

It is an arithmetic number, because the mean of its divisors is an integer number (1661400).

Almost surely, 2^12649057 is an apocalyptic number.

It is an amenable number.

12649057 is a deficient number, since it is larger than the sum of its proper divisors (642143).

12649057 is a wasteful number, since it uses less digits than its factorization.

12649057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 12649057 is about 3556.5512789780. The cubic root of 12649057 is about 232.9982807931.

The spelling of 12649057 in words is "twelve million, six hundred forty-nine thousand, fifty-seven".