13941579 has 4 divisors (see below), whose sum is σ = 18588776. Its totient is φ = 9294384.

The previous prime is 13941559. The next prime is 13941607. The reversal of 13941579 is 97514931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97514931 = 3 ⋅32504977.

It is not a de Polignac number, because 13941579 - 2⁷ = 13941451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13941539) 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, 2323594 + ... + 2323599.

It is an arithmetic number, because the mean of its divisors is an integer number (4647194).

Almost surely, 2^13941579 is an apocalyptic number.

13941579 is a deficient number, since it is larger than the sum of its proper divisors (4647197).

13941579 is an equidigital number, since it uses as much as digits as its factorization.

13941579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647196.

The product of its digits is 34020, while the sum is 39.

The square root of 13941579 is about 3733.8423908890. The cubic root of 13941579 is about 240.6785139650.

The spelling of 13941579 in words is "thirteen million, nine hundred forty-one thousand, five hundred seventy-nine".