253902161 has 2 divisors, whose sum is σ = 253902162. Its totient is φ = 253902160.

The previous prime is 253902151. The next prime is 253902167. The reversal of 253902161 is 161209352.

253902161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152275600 + 101626561 = 12340^2 + 10081^2 .

It is a cyclic number.

It is not a de Polignac number, because 253902161 - 2⁶ = 253902097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253902167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126951080 + 126951081.

It is an arithmetic number, because the mean of its divisors is an integer number (126951081).

Almost surely, 2^253902161 is an apocalyptic number.

It is an amenable number.

253902161 is a deficient number, since it is larger than the sum of its proper divisors (1).

253902161 is an equidigital number, since it uses as much as digits as its factorization.

253902161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 253902161 is about 15934.3076724406. The cubic root of 253902161 is about 633.2212281416.

The spelling of 253902161 in words is "two hundred fifty-three million, nine hundred two thousand, one hundred sixty-one".