13620185 has 8 divisors (see below), whose sum is σ = 16364040. Its totient is φ = 10882944.

The previous prime is 13620151. The next prime is 13620197. The reversal of 13620185 is 58102631.

It can be written as a sum of positive squares in 4 ways, for example, as 4084441 + 9535744 = 2021^2 + 3088^2 .

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 13620185 - 2¹⁰ = 13619161 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, 7199 + ... + 8891.

It is an arithmetic number, because the mean of its divisors is an integer number (2045505).

Almost surely, 2^13620185 is an apocalyptic number.

It is an amenable number.

13620185 is a deficient number, since it is larger than the sum of its proper divisors (2743855).

13620185 is a wasteful number, since it uses less digits than its factorization.

13620185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 13620185 is about 3690.5534815255. The cubic root of 13620185 is about 238.8146704922.

The spelling of 13620185 in words is "thirteen million, six hundred twenty thousand, one hundred eighty-five".