13119685 has 4 divisors (see below), whose sum is σ = 15743628. Its totient is φ = 10495744.

The previous prime is 13119677. The next prime is 13119731. The reversal of 13119685 is 58691131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58691131 = 41 ⋅1431491.

It can be written as a sum of positive squares in 2 ways, for example, as 2712609 + 10407076 = 1647^2 + 3226^2 .

It is a cyclic number.

It is not a de Polignac number, because 13119685 - 2³ = 13119677 is a prime.

It is a super-2 number, since 2×13119685² = 344252268998450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13119685.

It is a congruent 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, 1311964 + ... + 1311973.

It is an arithmetic number, because the mean of its divisors is an integer number (3935907).

Almost surely, 2^13119685 is an apocalyptic number.

It is an amenable number.

13119685 is a deficient number, since it is larger than the sum of its proper divisors (2623943).

13119685 is an equidigital number, since it uses as much as digits as its factorization.

13119685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623942.

The product of its digits is 6480, while the sum is 34.

The square root of 13119685 is about 3622.1105725806. The cubic root of 13119685 is about 235.8528540267.

The spelling of 13119685 in words is "thirteen million, one hundred nineteen thousand, six hundred eighty-five".