3115221379 has 4 divisors (see below), whose sum is σ = 3125238480. Its totient is φ = 3105204280.

The previous prime is 3115221377. The next prime is 3115221427. The reversal of 3115221379 is 9731225113.

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

It is a cyclic number.

It is not a de Polignac number, because 3115221379 - 2¹ = 3115221377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3115221377) 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, 5008084 + ... + 5008705.

It is an arithmetic number, because the mean of its divisors is an integer number (781309620).

Almost surely, 2^3115221379 is an apocalyptic number.

3115221379 is a deficient number, since it is larger than the sum of its proper divisors (10017101).

3115221379 is a wasteful number, since it uses less digits than its factorization.

3115221379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10017100.

The product of its digits is 11340, while the sum is 34.

The square root of 3115221379 is about 55814.1682639811. The cubic root of 3115221379 is about 1460.4823231288.

The spelling of 3115221379 in words is "three billion, one hundred fifteen million, two hundred twenty-one thousand, three hundred seventy-nine".