12557199 has 8 divisors (see below), whose sum is σ = 16899840. Its totient is φ = 8293016.

The previous prime is 12557197. The next prime is 12557213. The reversal of 12557199 is 99175521.

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 12557199 - 2¹ = 12557197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12557191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19239 + ... + 19880.

It is an arithmetic number, because the mean of its divisors is an integer number (2112480).

Almost surely, 2^12557199 is an apocalyptic number.

12557199 is a deficient number, since it is larger than the sum of its proper divisors (4342641).

12557199 is a wasteful number, since it uses less digits than its factorization.

12557199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39229.

The product of its digits is 28350, while the sum is 39.

The square root of 12557199 is about 3543.6138333628. The cubic root of 12557199 is about 232.4328954219.

The spelling of 12557199 in words is "twelve million, five hundred fifty-seven thousand, one hundred ninety-nine".