2490251 has 2 divisors, whose sum is σ = 2490252. Its totient is φ = 2490250.

The previous prime is 2490247. The next prime is 2490263. The reversal of 2490251 is 1520942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2490251 - 2² = 2490247 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2490221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245125 + 1245126.

It is an arithmetic number, because the mean of its divisors is an integer number (1245126).

2^2490251 is an apocalyptic number.

2490251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2490251 is an equidigital number, since it uses as much as digits as its factorization.

2490251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2490251 is about 1578.0529141952. The cubic root of 2490251 is about 135.5442319614.

The spelling of 2490251 in words is "two million, four hundred ninety thousand, two hundred fifty-one".