2315845 has 16 divisors (see below), whose sum is σ = 3207168. Its totient is φ = 1572480.

The previous prime is 2315843. The next prime is 2315849. The reversal of 2315845 is 5485132.

It is not a de Polignac number, because 2315845 - 2¹ = 2315843 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 (2315843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4185 + ... + 4705.

It is an arithmetic number, because the mean of its divisors is an integer number (200448).

2^2315845 is an apocalyptic number.

It is an amenable number.

2315845 is a deficient number, since it is larger than the sum of its proper divisors (891323).

2315845 is a wasteful number, since it uses less digits than its factorization.

2315845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660.

The product of its digits is 4800, while the sum is 28.

The square root of 2315845 is about 1521.7900643650. The cubic root of 2315845 is about 132.3030418915.

It can be divided in two parts, 2315 and 845, that added together give a triangular number (3160 = T₇₉).

The spelling of 2315845 in words is "two million, three hundred fifteen thousand, eight hundred forty-five".