13523402 has 16 divisors (see below), whose sum is σ = 22282560. Its totient is φ = 6126912.

The previous prime is 13523387. The next prime is 13523413. The reversal of 13523402 is 20432531.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6863 + ... + 8610.

It is an arithmetic number, because the mean of its divisors is an integer number (1392660).

Almost surely, 2^13523402 is an apocalyptic number.

13523402 is a deficient number, since it is larger than the sum of its proper divisors (8759158).

13523402 is a wasteful number, since it uses less digits than its factorization.

13523402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15517.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13523402 is about 3677.4178440857. The cubic root of 13523402 is about 238.2476648868.

Adding to 13523402 its reverse (20432531), we get a palindrome (33955933).

The spelling of 13523402 in words is "thirteen million, five hundred twenty-three thousand, four hundred two".