12697157 has 16 divisors (see below), whose sum is σ = 14618880. Its totient is φ = 10920000.

The previous prime is 12697151. The next prime is 12697171. The reversal of 12697157 is 75179621.

12697157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12697157 - 2⁴ = 12697141 is a prime.

It is a super-2 number, since 2×12697157² = 322435591765298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12697157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12697151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16532 + ... + 17282.

It is an arithmetic number, because the mean of its divisors is an integer number (913680).

Almost surely, 2^12697157 is an apocalyptic number.

It is an amenable number.

12697157 is a deficient number, since it is larger than the sum of its proper divisors (1921723).

12697157 is a wasteful number, since it uses less digits than its factorization.

12697157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844.

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

The square root of 12697157 is about 3563.3070313965. The cubic root of 12697157 is about 233.2932445867.

The spelling of 12697157 in words is "twelve million, six hundred ninety-seven thousand, one hundred fifty-seven".