251060071 has 2 divisors, whose sum is σ = 251060072. Its totient is φ = 251060070.

The previous prime is 251060057. The next prime is 251060081. The reversal of 251060071 is 170060152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 251060071 - 2⁷ = 251059943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251060081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125530035 + 125530036.

It is an arithmetic number, because the mean of its divisors is an integer number (125530036).

Almost surely, 2^251060071 is an apocalyptic number.

251060071 is a deficient number, since it is larger than the sum of its proper divisors (1).

251060071 is an equidigital number, since it uses as much as digits as its factorization.

251060071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 251060071 is about 15844.8752282875. The cubic root of 251060071 is about 630.8496732269.

The spelling of 251060071 in words is "two hundred fifty-one million, sixty thousand, seventy-one".