13150691 has 4 divisors (see below), whose sum is σ = 13335984. Its totient is φ = 12965400.

The previous prime is 13150681. The next prime is 13150699. The reversal of 13150691 is 19605131.

13150691 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13150691 is a prime.

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 13150691.

It is not an unprimeable number, because it can be changed into a prime (13150699) 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, 92540 + ... + 92681.

It is an arithmetic number, because the mean of its divisors is an integer number (3333996).

Almost surely, 2^13150691 is an apocalyptic number.

13150691 is a deficient number, since it is larger than the sum of its proper divisors (185293).

13150691 is an equidigital number, since it uses as much as digits as its factorization.

13150691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185292.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 13150691 is about 3626.3881480062. The cubic root of 13150691 is about 236.0385063569.

The spelling of 13150691 in words is "thirteen million, one hundred fifty thousand, six hundred ninety-one".