13942613 has 4 divisors (see below), whose sum is σ = 13973580. Its totient is φ = 13911648.

The previous prime is 13942609. The next prime is 13942619. The reversal of 13942613 is 31624931.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4566769 + 9375844 = 2137^2 + 3062^2 .

It is a cyclic number.

It is not a de Polignac number, because 13942613 - 2² = 13942609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13942619) 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, 14798 + ... + 15711.

It is an arithmetic number, because the mean of its divisors is an integer number (3493395).

Almost surely, 2^13942613 is an apocalyptic number.

It is an amenable number.

13942613 is a deficient number, since it is larger than the sum of its proper divisors (30967).

13942613 is an equidigital number, since it uses as much as digits as its factorization.

13942613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30966.

The product of its digits is 3888, while the sum is 29.

The square root of 13942613 is about 3733.9808515845. The cubic root of 13942613 is about 240.6844639231.

The spelling of 13942613 in words is "thirteen million, nine hundred forty-two thousand, six hundred thirteen".