3115249 has 2 divisors, whose sum is σ = 3115250. Its totient is φ = 3115248.

The previous prime is 3115241. The next prime is 3115253. The reversal of 3115249 is 9425113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2537649 + 577600 = 1593^2 + 760^2 .

It is an emirp because it is prime and its reverse (9425113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3115249 - 2³ = 3115241 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3115241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1557624 + 1557625.

It is an arithmetic number, because the mean of its divisors is an integer number (1557625).

Almost surely, 2^3115249 is an apocalyptic number.

It is an amenable number.

3115249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3115249 is an equidigital number, since it uses as much as digits as its factorization.

3115249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

The square root of 3115249 is about 1765.0067988538. The cubic root of 3115249 is about 146.0486639554.

It can be divided in two parts, 3115 and 249, that multiplied together give a triangular number (775635 = T₁₂₄₅).

The spelling of 3115249 in words is "three million, one hundred fifteen thousand, two hundred forty-nine".