12577542 has 16 divisors (see below), whose sum is σ = 25220160. Its totient is φ = 4181672.

The previous prime is 12577531. The next prime is 12577567. The reversal of 12577542 is 24577521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13 + ... + 5015.

It is an arithmetic number, because the mean of its divisors is an integer number (1576260).

Almost surely, 2^12577542 is an apocalyptic number.

12577542 is an abundant number, since it is smaller than the sum of its proper divisors (12642618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12577542 is a wasteful number, since it uses less digits than its factorization.

12577542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5427.

The product of its digits is 19600, while the sum is 33.

The square root of 12577542 is about 3546.4830466252. The cubic root of 12577542 is about 232.5583435497.

The spelling of 12577542 in words is "twelve million, five hundred seventy-seven thousand, five hundred forty-two".