13965513 has 16 divisors (see below), whose sum is σ = 19680000. Its totient is φ = 8784720.

The previous prime is 13965503. The next prime is 13965521. The reversal of 13965513 is 31556931.

It is not a de Polignac number, because 13965513 - 2¹² = 13961417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13965503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27738 + ... + 28236.

It is an arithmetic number, because the mean of its divisors is an integer number (1230000).

Almost surely, 2^13965513 is an apocalyptic number.

It is an amenable number.

13965513 is a deficient number, since it is larger than the sum of its proper divisors (5714487).

13965513 is a wasteful number, since it uses less digits than its factorization.

13965513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012.

The product of its digits is 12150, while the sum is 33.

The square root of 13965513 is about 3737.0460259408. The cubic root of 13965513 is about 240.8161623221.

The spelling of 13965513 in words is "thirteen million, nine hundred sixty-five thousand, five hundred thirteen".