12942177 has 4 divisors (see below), whose sum is σ = 17256240. Its totient is φ = 8628116.

The previous prime is 12942121. The next prime is 12942179. The reversal of 12942177 is 77124921.

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.

It is a cyclic number.

It is not a de Polignac number, because 12942177 - 2¹¹ = 12940129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12942179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2157027 + ... + 2157032.

It is an arithmetic number, because the mean of its divisors is an integer number (4314060).

Almost surely, 2^12942177 is an apocalyptic number.

It is an amenable number.

12942177 is a deficient number, since it is larger than the sum of its proper divisors (4314063).

12942177 is an equidigital number, since it uses as much as digits as its factorization.

12942177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314062.

The product of its digits is 7056, while the sum is 33.

The square root of 12942177 is about 3597.5237316799. The cubic root of 12942177 is about 234.7843320876.

The spelling of 12942177 in words is "twelve million, nine hundred forty-two thousand, one hundred seventy-seven".