13402975 has 12 divisors (see below), whose sum is σ = 16794064. Its totient is φ = 10609920.

The previous prime is 13402957. The next prime is 13402979. The reversal of 13402975 is 57920431.

It is not a de Polignac number, because 13402975 - 2¹⁹ = 12878687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339 + ... + 5188.

Almost surely, 2^13402975 is an apocalyptic number.

13402975 is a deficient number, since it is larger than the sum of its proper divisors (3391089).

13402975 is an equidigital number, since it uses as much as digits as its factorization.

13402975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634 (or 5629 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 13402975 is about 3661.0073750267. The cubic root of 13402975 is about 237.5383502244.

The spelling of 13402975 in words is "thirteen million, four hundred two thousand, nine hundred seventy-five".