13290691 has 4 divisors (see below), whose sum is σ = 13422384. Its totient is φ = 13159000.

The previous prime is 13290647. The next prime is 13290713. The reversal of 13290691 is 19609231.

13290691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19609231 = 3779 ⋅5189.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13290691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13290391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65695 + ... + 65896.

It is an arithmetic number, because the mean of its divisors is an integer number (3355596).

Almost surely, 2^13290691 is an apocalyptic number.

13290691 is a deficient number, since it is larger than the sum of its proper divisors (131693).

13290691 is a wasteful number, since it uses less digits than its factorization.

13290691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131692.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 13290691 is about 3645.6399986834. The cubic root of 13290691 is about 236.8731599470.

The spelling of 13290691 in words is "thirteen million, two hundred ninety thousand, six hundred ninety-one".