13612705 has 4 divisors (see below), whose sum is σ = 16335252. Its totient is φ = 10890160.

The previous prime is 13612693. The next prime is 13612717. The reversal of 13612705 is 50721631.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13612693) and next prime (13612717).

It can be written as a sum of positive squares in 2 ways, for example, as 10093329 + 3519376 = 3177^2 + 1876^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13612705 is a prime.

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 13612705.

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, 1361266 + ... + 1361275.

It is an arithmetic number, because the mean of its divisors is an integer number (4083813).

Almost surely, 2^13612705 is an apocalyptic number.

It is an amenable number.

13612705 is a deficient number, since it is larger than the sum of its proper divisors (2722547).

13612705 is an equidigital number, since it uses as much as digits as its factorization.

13612705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722546.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 13612705 is about 3689.5399442207. The cubic root of 13612705 is about 238.7709446827.

The spelling of 13612705 in words is "thirteen million, six hundred twelve thousand, seven hundred five".