13613545 has 8 divisors (see below), whose sum is σ = 17821440. Its totient is φ = 9900720.

The previous prime is 13613533. The next prime is 13613563. The reversal of 13613545 is 54531631.

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

It is not a de Polignac number, because 13613545 - 2⁵ = 13613513 is a prime.

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, 123705 + ... + 123814.

It is an arithmetic number, because the mean of its divisors is an integer number (2227680).

Almost surely, 2^13613545 is an apocalyptic number.

It is an amenable number.

13613545 is a deficient number, since it is larger than the sum of its proper divisors (4207895).

13613545 is a wasteful number, since it uses less digits than its factorization.

13613545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247535.

The product of its digits is 5400, while the sum is 28.

The square root of 13613545 is about 3689.6537777954. The cubic root of 13613545 is about 238.7758558659.

The spelling of 13613545 in words is "thirteen million, six hundred thirteen thousand, five hundred forty-five".