12776157 has 8 divisors (see below), whose sum is σ = 18927680. Its totient is φ = 8517420.

The previous prime is 12776149. The next prime is 12776167. The reversal of 12776157 is 75167721.

It is not a de Polignac number, because 12776157 - 2³ = 12776149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12776147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236569 + ... + 236622.

It is an arithmetic number, because the mean of its divisors is an integer number (2365960).

Almost surely, 2^12776157 is an apocalyptic number.

It is an amenable number.

12776157 is a deficient number, since it is larger than the sum of its proper divisors (6151523).

12776157 is an equidigital number, since it uses as much as digits as its factorization.

12776157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473200 (or 473194 counting only the distinct ones).

The product of its digits is 20580, while the sum is 36.

The square root of 12776157 is about 3574.3750502710. The cubic root of 12776157 is about 233.7760842902.

The spelling of 12776157 in words is "twelve million, seven hundred seventy-six thousand, one hundred fifty-seven".