13169691 has 12 divisors (see below), whose sum is σ = 19082232. Its totient is φ = 8752416.

The previous prime is 13169677. The next prime is 13169749. The reversal of 13169691 is 19696131.

13169691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13169691 - 2¹⁴ = 13153307 is a prime.

It is a super-2 number, since 2×13169691² = 346881522070962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13169671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1015 + ... + 5231.

It is an arithmetic number, because the mean of its divisors is an integer number (1590186).

Almost surely, 2^13169691 is an apocalyptic number.

13169691 is a deficient number, since it is larger than the sum of its proper divisors (5912541).

13169691 is a wasteful number, since it uses less digits than its factorization.

13169691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570 (or 4567 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 13169691 is about 3629.0068889436. The cubic root of 13169691 is about 236.1521270916.

The spelling of 13169691 in words is "thirteen million, one hundred sixty-nine thousand, six hundred ninety-one".