13401291 has 8 divisors (see below), whose sum is σ = 17892160. Its totient is φ = 8922312.

The previous prime is 13401281. The next prime is 13401299. The reversal of 13401291 is 19210431.

13401291 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13401291 - 2⁷ = 13401163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13401299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120 + ... + 5178.

It is an arithmetic number, because the mean of its divisors is an integer number (2236520).

Almost surely, 2^13401291 is an apocalyptic number.

13401291 is a deficient number, since it is larger than the sum of its proper divisors (4490869).

13401291 is an equidigital number, since it uses as much as digits as its factorization.

13401291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5945.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 13401291 is about 3660.7773764598. Note that the first 3 decimals coincide. The cubic root of 13401291 is about 237.5284014050.

The spelling of 13401291 in words is "thirteen million, four hundred one thousand, two hundred ninety-one".