13013185 has 4 divisors (see below), whose sum is σ = 15615828. Its totient is φ = 10410544.

The previous prime is 13013179. The next prime is 13013197. The reversal of 13013185 is 58131031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58131031 = 7 ⋅8304433.

It can be written as a sum of positive squares in 2 ways, for example, as 6922161 + 6091024 = 2631^2 + 2468^2 .

It is a cyclic number.

It is not a de Polignac number, because 13013185 - 2⁷ = 13013057 is a prime.

It is a super-3 number, since 3×13013185³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301314 + ... + 1301323.

It is an arithmetic number, because the mean of its divisors is an integer number (3903957).

Almost surely, 2^13013185 is an apocalyptic number.

It is an amenable number.

13013185 is a deficient number, since it is larger than the sum of its proper divisors (2602643).

13013185 is an equidigital number, since it uses as much as digits as its factorization.

13013185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602642.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 13013185 is about 3607.3792426081. The cubic root of 13013185 is about 235.2129351120.

The spelling of 13013185 in words is "thirteen million, thirteen thousand, one hundred eighty-five".