3115213 has 4 divisors (see below), whose sum is σ = 3131548. Its totient is φ = 3098880.

The previous prime is 3115201. The next prime is 3115237. The reversal of 3115213 is 3125113.

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 1004004 + 2111209 = 1002^2 + 1453^2 .

It is a cyclic number.

It is not a de Polignac number, because 3115213 - 2⁹ = 3114701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115253) 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, 7878 + ... + 8263.

It is an arithmetic number, because the mean of its divisors is an integer number (782887).

Almost surely, 2^3115213 is an apocalyptic number.

It is an amenable number.

3115213 is a deficient number, since it is larger than the sum of its proper divisors (16335).

3115213 is a wasteful number, since it uses less digits than its factorization.

3115213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16334.

The product of its digits is 90, while the sum is 16.

The square root of 3115213 is about 1764.9966005633. The cubic root of 3115213 is about 146.0481013710.

The spelling of 3115213 in words is "three million, one hundred fifteen thousand, two hundred thirteen".