12942577 has 4 divisors (see below), whose sum is σ = 12957696. Its totient is φ = 12927460.

The previous prime is 12942571. The next prime is 12942607. The reversal of 12942577 is 77524921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77524921 = 19 ⋅4080259.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12942577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12942571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6193 + ... + 8014.

It is an arithmetic number, because the mean of its divisors is an integer number (3239424).

Almost surely, 2^12942577 is an apocalyptic number.

It is an amenable number.

12942577 is a deficient number, since it is larger than the sum of its proper divisors (15119).

12942577 is an equidigital number, since it uses as much as digits as its factorization.

12942577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15118.

The product of its digits is 35280, while the sum is 37.

The square root of 12942577 is about 3597.5793250462. The cubic root of 12942577 is about 234.7867508658.

The spelling of 12942577 in words is "twelve million, nine hundred forty-two thousand, five hundred seventy-seven".