3115481 has 2 divisors, whose sum is σ = 3115482. Its totient is φ = 3115480.

The previous prime is 3115477. The next prime is 3115493. The reversal of 3115481 is 1845113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3115225 + 256 = 1765^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 3115481 - 2² = 3115477 is a prime.

It is a super-2 number, since 2×3115481² = 19412443722722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3115451) 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 as a sum of consecutive naturals, namely, 1557740 + 1557741.

It is an arithmetic number, because the mean of its divisors is an integer number (1557741).

Almost surely, 2^3115481 is an apocalyptic number.

It is an amenable number.

3115481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3115481 is an equidigital number, since it uses as much as digits as its factorization.

3115481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 23.

The square root of 3115481 is about 1765.0725197566. The cubic root of 3115481 is about 146.0522893958.

The spelling of 3115481 in words is "three million, one hundred fifteen thousand, four hundred eighty-one".