13400091 has 12 divisors (see below), whose sum is σ = 19980480. Its totient is φ = 8645040.

The previous prime is 13400089. The next prime is 13400129. The reversal of 13400091 is 19000431.

13400091 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13400091 - 2¹ = 13400089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13400041) 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, 23736 + ... + 24293.

It is an arithmetic number, because the mean of its divisors is an integer number (1665040).

Almost surely, 2^13400091 is an apocalyptic number.

13400091 is a deficient number, since it is larger than the sum of its proper divisors (6580389).

13400091 is a wasteful number, since it uses less digits than its factorization.

13400091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48066 (or 48063 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 13400091 is about 3660.6134731763. The cubic root of 13400091 is about 237.5213114763.

The spelling of 13400091 in words is "thirteen million, four hundred thousand, ninety-one".