13661455 has 8 divisors (see below), whose sum is σ = 17358192. Its totient is φ = 10286208.

The previous prime is 13661449. The next prime is 13661467. The reversal of 13661455 is 55416631.

13661455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13661455 - 2³ = 13661447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80277 + ... + 80446.

It is an arithmetic number, because the mean of its divisors is an integer number (2169774).

Almost surely, 2^13661455 is an apocalyptic number.

13661455 is a deficient number, since it is larger than the sum of its proper divisors (3696737).

13661455 is a wasteful number, since it uses less digits than its factorization.

13661455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160745.

The product of its digits is 10800, while the sum is 31.

The square root of 13661455 is about 3696.1405546867. The cubic root of 13661455 is about 239.0556350002.

The spelling of 13661455 in words is "thirteen million, six hundred sixty-one thousand, four hundred fifty-five".