13146957 has 6 divisors (see below), whose sum is σ = 18990062. Its totient is φ = 8764632.

The previous prime is 13146953. The next prime is 13146977. The reversal of 13146957 is 75964131.

13146957 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10150596 + 2996361 = 3186^2 + 1731^2 .

It is not a de Polignac number, because 13146957 - 2² = 13146953 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 (13146953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 730378 + ... + 730395.

Almost surely, 2^13146957 is an apocalyptic number.

It is an amenable number.

13146957 is a deficient number, since it is larger than the sum of its proper divisors (5843105).

13146957 is a wasteful number, since it uses less digits than its factorization.

13146957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460779 (or 1460776 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 13146957 is about 3625.8732741231. The cubic root of 13146957 is about 236.0161640274.

The spelling of 13146957 in words is "thirteen million, one hundred forty-six thousand, nine hundred fifty-seven".