253819871 has 2 divisors, whose sum is σ = 253819872. Its totient is φ = 253819870.

The previous prime is 253819831. The next prime is 253819921. The reversal of 253819871 is 178918352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253819871 - 2²² = 249625567 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253819801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126909935 + 126909936.

It is an arithmetic number, because the mean of its divisors is an integer number (126909936).

Almost surely, 2^253819871 is an apocalyptic number.

253819871 is a deficient number, since it is larger than the sum of its proper divisors (1).

253819871 is an equidigital number, since it uses as much as digits as its factorization.

253819871 is an odious number, because the sum of its binary digits is odd.

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

The square root of 253819871 is about 15931.7252989122. The cubic root of 253819871 is about 633.1528114924.

The spelling of 253819871 in words is "two hundred fifty-three million, eight hundred nineteen thousand, eight hundred seventy-one".