13137657 has 8 divisors (see below), whose sum is σ = 18864384. Its totient is φ = 8084688.

The previous prime is 13137643. The next prime is 13137659. The reversal of 13137657 is 75673131.

13137657 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13137657 - 2⁷ = 13137529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13137659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168393 + ... + 168470.

It is an arithmetic number, because the mean of its divisors is an integer number (2358048).

Almost surely, 2^13137657 is an apocalyptic number.

It is an amenable number.

13137657 is a deficient number, since it is larger than the sum of its proper divisors (5726727).

13137657 is a wasteful number, since it uses less digits than its factorization.

13137657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336879.

The product of its digits is 13230, while the sum is 33.

The square root of 13137657 is about 3624.5905975710. The cubic root of 13137657 is about 235.9604992301.

The spelling of 13137657 in words is "thirteen million, one hundred thirty-seven thousand, six hundred fifty-seven".