2315969 has 4 divisors (see below), whose sum is σ = 2395860. Its totient is φ = 2236080.

The previous prime is 2315959. The next prime is 2315981. The reversal of 2315969 is 9695132.

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 1809025 + 506944 = 1345^2 + 712^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315969 - 2⁴ = 2315953 is a prime.

It is a super-2 number, since 2×2315969² = 10727424817922, which contains 22 as substring.

It is a Duffinian 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, 39902 + ... + 39959.

It is an arithmetic number, because the mean of its divisors is an integer number (598965).

2^2315969 is an apocalyptic number.

2315969 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2315969 is a deficient number, since it is larger than the sum of its proper divisors (79891).

2315969 is an equidigital number, since it uses as much as digits as its factorization.

2315969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79890.

The product of its digits is 14580, while the sum is 35.

The square root of 2315969 is about 1521.8308053131. The cubic root of 2315969 is about 132.3054032016.

The spelling of 2315969 in words is "two million, three hundred fifteen thousand, nine hundred sixty-nine".