13401249 has 16 divisors (see below), whose sum is σ = 18772992. Its totient is φ = 8487248.

The previous prime is 13401247. The next prime is 13401281. The reversal of 13401249 is 94210431.

13401249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13401249 - 2¹ = 13401247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13401247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10942 + ... + 12104.

It is an arithmetic number, because the mean of its divisors is an integer number (1173312).

Almost surely, 2^13401249 is an apocalyptic number.

It is an amenable number.

13401249 is a deficient number, since it is larger than the sum of its proper divisors (5371743).

13401249 is a wasteful number, since it uses less digits than its factorization.

13401249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 13401249 is about 3660.7716399688. The cubic root of 13401249 is about 237.5281532646.

The spelling of 13401249 in words is "thirteen million, four hundred one thousand, two hundred forty-nine".