13613995 has 4 divisors (see below), whose sum is σ = 16336800. Its totient is φ = 10891192.

The previous prime is 13613993. The next prime is 13614001. The reversal of 13613995 is 59931631.

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

It is a cyclic number.

It is not a de Polignac number, because 13613995 - 2¹ = 13613993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13613993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1361395 + ... + 1361404.

It is an arithmetic number, because the mean of its divisors is an integer number (4084200).

Almost surely, 2^13613995 is an apocalyptic number.

13613995 is a deficient number, since it is larger than the sum of its proper divisors (2722805).

13613995 is an equidigital number, since it uses as much as digits as its factorization.

13613995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722804.

The product of its digits is 21870, while the sum is 37.

The square root of 13613995 is about 3689.7147586229. The cubic root of 13613995 is about 238.7784867739.

It can be divided in two parts, 1361 and 3995, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 13613995 in words is "thirteen million, six hundred thirteen thousand, nine hundred ninety-five".