13451979 has 8 divisors (see below), whose sum is σ = 18420880. Its totient is φ = 8725536.

The previous prime is 13451959. The next prime is 13451993. The reversal of 13451979 is 97915431.

It is a happy number.

13451979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13451979 - 2⁹ = 13451467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13451909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60484 + ... + 60705.

It is an arithmetic number, because the mean of its divisors is an integer number (2302610).

Almost surely, 2^13451979 is an apocalyptic number.

13451979 is a deficient number, since it is larger than the sum of its proper divisors (4968901).

13451979 is a wasteful number, since it uses less digits than its factorization.

13451979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121229.

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

The square root of 13451979 is about 3667.6939621511. The cubic root of 13451979 is about 237.8274942787.

The spelling of 13451979 in words is "thirteen million, four hundred fifty-one thousand, nine hundred seventy-nine".