13401535 has 16 divisors (see below), whose sum is σ = 18441216. Its totient is φ = 9158688.

The previous prime is 13401523. The next prime is 13401539. The reversal of 13401535 is 53510431.

It is a happy number.

It is not a de Polignac number, because 13401535 - 2⁵ = 13401503 is a prime.

It is a super-2 number, since 2×13401535² = 359202280712450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15792 + ... + 16618.

It is an arithmetic number, because the mean of its divisors is an integer number (1152576).

Almost surely, 2^13401535 is an apocalyptic number.

13401535 is a deficient number, since it is larger than the sum of its proper divisors (5039681).

13401535 is an equidigital number, since it uses as much as digits as its factorization.

13401535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13401535 is about 3660.8107025630. The cubic root of 13401535 is about 237.5298429720.

Adding to 13401535 its reverse (53510431), we get a palindrome (66911966).

The spelling of 13401535 in words is "thirteen million, four hundred one thousand, five hundred thirty-five".