253009157 has 2 divisors, whose sum is σ = 253009158. Its totient is φ = 253009156.

The previous prime is 253009093. The next prime is 253009171. The reversal of 253009157 is 751900352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241926916 + 11082241 = 15554^2 + 3329^2 .

It is a cyclic number.

It is not a de Polignac number, because 253009157 - 2⁶ = 253009093 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 (253009457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126504578 + 126504579.

It is an arithmetic number, because the mean of its divisors is an integer number (126504579).

Almost surely, 2^253009157 is an apocalyptic number.

It is an amenable number.

253009157 is a deficient number, since it is larger than the sum of its proper divisors (1).

253009157 is an equidigital number, since it uses as much as digits as its factorization.

253009157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 253009157 is about 15906.2615658111. The cubic root of 253009157 is about 632.4779847254.

The spelling of 253009157 in words is "two hundred fifty-three million, nine thousand, one hundred fifty-seven".