2315081 has 2 divisors, whose sum is σ = 2315082. Its totient is φ = 2315080.

The previous prime is 2315069. The next prime is 2315107. The reversal of 2315081 is 1805132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1974025 + 341056 = 1405^2 + 584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2315081 is a prime.

It is a super-2 number, since 2×2315081² = 10719200073122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2315581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1157540 + 1157541.

It is an arithmetic number, because the mean of its divisors is an integer number (1157541).

2^2315081 is an apocalyptic number.

It is an amenable number.

2315081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2315081 is an equidigital number, since it uses as much as digits as its factorization.

2315081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2315081 is about 1521.5390234890. The cubic root of 2315081 is about 132.2884913147.

It can be divided in two parts, 231 and 5081, that multiplied together give a palindrome (1173711).

The spelling of 2315081 in words is "two million, three hundred fifteen thousand, eighty-one".