13967513 has 4 divisors (see below), whose sum is σ = 15962880. Its totient is φ = 11972148.

The previous prime is 13967449. The next prime is 13967519. The reversal of 13967513 is 31576931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13967513 - 2⁶ = 13967449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13967519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 997673 + ... + 997686.

It is an arithmetic number, because the mean of its divisors is an integer number (3990720).

Almost surely, 2^13967513 is an apocalyptic number.

It is an amenable number.

13967513 is a deficient number, since it is larger than the sum of its proper divisors (1995367).

13967513 is an equidigital number, since it uses as much as digits as its factorization.

13967513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995366.

The product of its digits is 17010, while the sum is 35.

The square root of 13967513 is about 3737.3136073923. The cubic root of 13967513 is about 240.8276575279.

The spelling of 13967513 in words is "thirteen million, nine hundred sixty-seven thousand, five hundred thirteen".