13402255 has 4 divisors (see below), whose sum is σ = 16082712. Its totient is φ = 10721800.

The previous prime is 13402253. The next prime is 13402297. The reversal of 13402255 is 55220431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13402255 - 2¹ = 13402253 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 (13402253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340221 + ... + 1340230.

It is an arithmetic number, because the mean of its divisors is an integer number (4020678).

Almost surely, 2^13402255 is an apocalyptic number.

13402255 is a deficient number, since it is larger than the sum of its proper divisors (2680457).

13402255 is an equidigital number, since it uses as much as digits as its factorization.

13402255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680456.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 13402255 is about 3660.9090401156. The cubic root of 13402255 is about 237.5340966744.

Adding to 13402255 its reverse (55220431), we get a palindrome (68622686).

The spelling of 13402255 in words is "thirteen million, four hundred two thousand, two hundred fifty-five".