13439995 has 4 divisors (see below), whose sum is σ = 16128000. Its totient is φ = 10751992.

The previous prime is 13439939. The next prime is 13440001. The reversal of 13439995 is 59993431.

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 13439995 - 2⁹ = 13439483 is a prime.

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, 1343995 + ... + 1344004.

It is an arithmetic number, because the mean of its divisors is an integer number (4032000).

Almost surely, 2^13439995 is an apocalyptic number.

13439995 is a deficient number, since it is larger than the sum of its proper divisors (2688005).

13439995 is an equidigital number, since it uses as much as digits as its factorization.

13439995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688004.

The product of its digits is 131220, while the sum is 43.

The square root of 13439995 is about 3666.0598740337. The cubic root of 13439995 is about 237.7568486268.

The spelling of 13439995 in words is "thirteen million, four hundred thirty-nine thousand, nine hundred ninety-five".