2315919 has 4 divisors (see below), whose sum is σ = 3087896. Its totient is φ = 1543944.

The previous prime is 2315903. The next prime is 2315947. The reversal of 2315919 is 9195132.

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

It is not a de Polignac number, because 2315919 - 2⁴ = 2315903 is a prime.

It is a super-2 number, since 2×2315919² = 10726961629122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315959) 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, 385984 + ... + 385989.

It is an arithmetic number, because the mean of its divisors is an integer number (771974).

2^2315919 is an apocalyptic number.

2315919 is a deficient number, since it is larger than the sum of its proper divisors (771977).

2315919 is an equidigital number, since it uses as much as digits as its factorization.

2315919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771976.

The product of its digits is 2430, while the sum is 30.

The square root of 2315919 is about 1521.8143776427. The cubic root of 2315919 is about 132.3044510706.

The spelling of 2315919 in words is "two million, three hundred fifteen thousand, nine hundred nineteen".