12867157 has 8 divisors (see below), whose sum is σ = 13433912. Its totient is φ = 12312000.

The previous prime is 12867131. The next prime is 12867187. The reversal of 12867157 is 75176821.

12867157 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3076516 + 9790641 = 1754^2 + 3129^2 .

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 12867157 - 2²³ = 4478549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12867187) 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, 594 + ... + 5107.

It is an arithmetic number, because the mean of its divisors is an integer number (1679239).

Almost surely, 2^12867157 is an apocalyptic number.

It is an amenable number.

12867157 is a deficient number, since it is larger than the sum of its proper divisors (566755).

12867157 is an equidigital number, since it uses as much as digits as its factorization.

12867157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5799.

The product of its digits is 23520, while the sum is 37.

The square root of 12867157 is about 3587.0819617065. The cubic root of 12867157 is about 234.3298062075.

The spelling of 12867157 in words is "twelve million, eight hundred sixty-seven thousand, one hundred fifty-seven".