13153855 has 16 divisors (see below), whose sum is σ = 18545184. Its totient is φ = 8830080.

The previous prime is 13153853. The next prime is 13153859. The reversal of 13153855 is 55835131.

It is not a de Polignac number, because 13153855 - 2¹ = 13153853 is a prime.

It is a super-2 number, since 2×13153855² = 346047802722050, 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 (13153853) 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, 8484 + ... + 9913.

It is an arithmetic number, because the mean of its divisors is an integer number (1159074).

Almost surely, 2^13153855 is an apocalyptic number.

13153855 is a deficient number, since it is larger than the sum of its proper divisors (5391329).

13153855 is a wasteful number, since it uses less digits than its factorization.

13153855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18426.

The product of its digits is 9000, while the sum is 31.

The square root of 13153855 is about 3626.8243685075. The cubic root of 13153855 is about 236.0574347906.

Adding to 13153855 its reverse (55835131), we get a palindrome (68988986).

The spelling of 13153855 in words is "thirteen million, one hundred fifty-three thousand, eight hundred fifty-five".