12679157 has 2 divisors, whose sum is σ = 12679158. Its totient is φ = 12679156.

The previous prime is 12679129. The next prime is 12679171. The reversal of 12679157 is 75197621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6754801 + 5924356 = 2599^2 + 2434^2 .

It is an emirp because it is prime and its reverse (75197621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12679157 is a prime.

It is a super-2 number, since 2×12679157² = 321522044461298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12679157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12679057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6339578 + 6339579.

It is an arithmetic number, because the mean of its divisors is an integer number (6339579).

Almost surely, 2^12679157 is an apocalyptic number.

It is an amenable number.

12679157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12679157 is an equidigital number, since it uses as much as digits as its factorization.

12679157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 38.

The square root of 12679157 is about 3560.7803919927. The cubic root of 12679157 is about 233.1829504917.

The spelling of 12679157 in words is "twelve million, six hundred seventy-nine thousand, one hundred fifty-seven".