251197883 has 2 divisors, whose sum is σ = 251197884. Its totient is φ = 251197882.

The previous prime is 251197853. The next prime is 251197901. The reversal of 251197883 is 388791152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 251197883 - 2²⁶ = 184089019 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (251197823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125598941 + 125598942.

It is an arithmetic number, because the mean of its divisors is an integer number (125598942).

Almost surely, 2^251197883 is an apocalyptic number.

251197883 is a deficient number, since it is larger than the sum of its proper divisors (1).

251197883 is an equidigital number, since it uses as much as digits as its factorization.

251197883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 44.

The square root of 251197883 is about 15849.2234194613. The cubic root of 251197883 is about 630.9650808691.

The spelling of 251197883 in words is "two hundred fifty-one million, one hundred ninety-seven thousand, eight hundred eighty-three".