12557374 has 4 divisors (see below), whose sum is σ = 18836064. Its totient is φ = 6278686.

The previous prime is 12557317. The next prime is 12557417. The reversal of 12557374 is 47375521.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3139342 + ... + 3139345.

It is an arithmetic number, because the mean of its divisors is an integer number (4709016).

Almost surely, 2^12557374 is an apocalyptic number.

12557374 is a deficient number, since it is larger than the sum of its proper divisors (6278690).

12557374 is an equidigital number, since it uses as much as digits as its factorization.

12557374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6278689.

The product of its digits is 29400, while the sum is 34.

The square root of 12557374 is about 3543.6385255836. The cubic root of 12557374 is about 232.4339751629.

The spelling of 12557374 in words is "twelve million, five hundred fifty-seven thousand, three hundred seventy-four".