13557204 has 18 divisors (see below), whose sum is σ = 34269690. Its totient is φ = 4519056.

The previous prime is 13557191. The next prime is 13557217. The reversal of 13557204 is 40275531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13557191) and next prime (13557217).

It can be written as a sum of positive squares in only one way, i.e., 13395600 + 161604 = 3660^2 + 402^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 188259 + ... + 188330.

Almost surely, 2^13557204 is an apocalyptic number.

It is an amenable number.

13557204 is an abundant number, since it is smaller than the sum of its proper divisors (20712486).

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

13557204 is a wasteful number, since it uses less digits than its factorization.

13557204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376599 (or 376594 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 13557204 is about 3682.0108636450. The cubic root of 13557204 is about 238.4460012503.

The spelling of 13557204 in words is "thirteen million, five hundred fifty-seven thousand, two hundred four".