13136965 has 4 divisors (see below), whose sum is σ = 15764364. Its totient is φ = 10509568.

The previous prime is 13136957. The next prime is 13137011. The reversal of 13136965 is 56963131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56963131 = 2833 ⋅20107.

It can be written as a sum of positive squares in 2 ways, for example, as 9012004 + 4124961 = 3002^2 + 2031^2 .

It is a cyclic number.

It is not a de Polignac number, because 13136965 - 2³ = 13136957 is a prime.

It is a super-2 number, since 2×13136965² = 345159698822450, 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 13136965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313692 + ... + 1313701.

It is an arithmetic number, because the mean of its divisors is an integer number (3941091).

Almost surely, 2^13136965 is an apocalyptic number.

It is an amenable number.

13136965 is a deficient number, since it is larger than the sum of its proper divisors (2627399).

13136965 is an equidigital number, since it uses as much as digits as its factorization.

13136965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627398.

The product of its digits is 14580, while the sum is 34.

The square root of 13136965 is about 3624.4951372570. The cubic root of 13136965 is about 235.9563562404.

The spelling of 13136965 in words is "thirteen million, one hundred thirty-six thousand, nine hundred sixty-five".