2315869 has 4 divisors (see below), whose sum is σ = 2341980. Its totient is φ = 2289760.

The previous prime is 2315861. The next prime is 2315881. The reversal of 2315869 is 9685132.

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 1532644 + 783225 = 1238^2 + 885^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315869 - 2³ = 2315861 is a prime.

It is a super-2 number, since 2×2315869² = 10726498450322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315861) 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, 12922 + ... + 13099.

It is an arithmetic number, because the mean of its divisors is an integer number (585495).

2^2315869 is an apocalyptic number.

It is an amenable number.

2315869 is a deficient number, since it is larger than the sum of its proper divisors (26111).

2315869 is an equidigital number, since it uses as much as digits as its factorization.

2315869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26110.

The product of its digits is 12960, while the sum is 34.

The square root of 2315869 is about 1521.7979497949. The cubic root of 2315869 is about 132.3034989258.

The spelling of 2315869 in words is "two million, three hundred fifteen thousand, eight hundred sixty-nine".