245862251 has 2 divisors, whose sum is σ = 245862252. Its totient is φ = 245862250.

The previous prime is 245862247. The next prime is 245862257. The reversal of 245862251 is 152268542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245862251 - 2² = 245862247 is a prime.

It is not a weakly prime, because it can be changed into another prime (245862257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122931125 + 122931126.

It is an arithmetic number, because the mean of its divisors is an integer number (122931126).

Almost surely, 2^245862251 is an apocalyptic number.

245862251 is a deficient number, since it is larger than the sum of its proper divisors (1).

245862251 is an equidigital number, since it uses as much as digits as its factorization.

245862251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38400, while the sum is 35.

The square root of 245862251 is about 15679.9952487238. The cubic root of 245862251 is about 626.4656810132.

The spelling of 245862251 in words is "two hundred forty-five million, eight hundred sixty-two thousand, two hundred fifty-one".