13513554 has 20 divisors (see below), whose sum is σ = 30280734. Its totient is φ = 4504464.

The previous prime is 13513531. The next prime is 13513561. The reversal of 13513554 is 45531531.

13513554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13286025 + 227529 = 3645^2 + 477^2 .

It is a super-2 number, since 2×13513554² = 365232283421832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 41547 + ... + 41870.

Almost surely, 2^13513554 is an apocalyptic number.

13513554 is an abundant number, since it is smaller than the sum of its proper divisors (16767180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13513554 is an equidigital number, since it uses as much as digits as its factorization.

13513554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83431 (or 83422 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 13513554 is about 3676.0786172224. The cubic root of 13513554 is about 238.1898186741.

It can be divided in two parts, 135 and 13554, that added together give a square (13689 = 117²).

The spelling of 13513554 in words is "thirteen million, five hundred thirteen thousand, five hundred fifty-four".