2315251 has 4 divisors (see below), whose sum is σ = 2321032. Its totient is φ = 2309472.

The previous prime is 2315237. The next prime is 2315263. The reversal of 2315251 is 1525132.

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

It is a cyclic number.

It is not a de Polignac number, because 2315251 - 2⁷ = 2315123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2315231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2241 + ... + 3106.

It is an arithmetic number, because the mean of its divisors is an integer number (580258).

2^2315251 is an apocalyptic number.

2315251 is a deficient number, since it is larger than the sum of its proper divisors (5781).

2315251 is an equidigital number, since it uses as much as digits as its factorization.

2315251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5780.

The product of its digits is 300, while the sum is 19.

The square root of 2315251 is about 1521.5948869525. The cubic root of 2315251 is about 132.2917292854.

The spelling of 2315251 in words is "two million, three hundred fifteen thousand, two hundred fifty-one".