12946157 has 4 divisors (see below), whose sum is σ = 14795616. Its totient is φ = 11096700.

The previous prime is 12946147. The next prime is 12946169. The reversal of 12946157 is 75164921.

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 12946157 - 2¹⁰ = 12945133 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 (12946117) 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, 924719 + ... + 924732.

It is an arithmetic number, because the mean of its divisors is an integer number (3698904).

Almost surely, 2^12946157 is an apocalyptic number.

It is an amenable number.

12946157 is a deficient number, since it is larger than the sum of its proper divisors (1849459).

12946157 is an equidigital number, since it uses as much as digits as its factorization.

12946157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849458.

The product of its digits is 15120, while the sum is 35.

The square root of 12946157 is about 3598.0768474284. The cubic root of 12946157 is about 234.8083967116.

The spelling of 12946157 in words is "twelve million, nine hundred forty-six thousand, one hundred fifty-seven".