12919157 has 8 divisors (see below), whose sum is σ = 13385472. Its totient is φ = 12456000.

The previous prime is 12919117. The next prime is 12919163. The reversal of 12919157 is 75191921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12919157 - 2⁸ = 12918901 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 (12919117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10157 + ... + 11357.

It is an arithmetic number, because the mean of its divisors is an integer number (1673184).

Almost surely, 2^12919157 is an apocalyptic number.

It is an amenable number.

12919157 is a deficient number, since it is larger than the sum of its proper divisors (466315).

12919157 is a wasteful number, since it uses less digits than its factorization.

12919157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579.

The product of its digits is 5670, while the sum is 35.

The square root of 12919157 is about 3594.3228847726. The cubic root of 12919157 is about 234.6450473566.

The spelling of 12919157 in words is "twelve million, nine hundred nineteen thousand, one hundred fifty-seven".