253138189 has 2 divisors, whose sum is σ = 253138190. Its totient is φ = 253138188.

The previous prime is 253138183. The next prime is 253138213. The reversal of 253138189 is 981831352.

253138189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199233225 + 53904964 = 14115^2 + 7342^2 .

It is a cyclic number.

It is not a de Polignac number, because 253138189 - 2³ = 253138181 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 (253138181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126569094 + 126569095.

It is an arithmetic number, because the mean of its divisors is an integer number (126569095).

Almost surely, 2^253138189 is an apocalyptic number.

It is an amenable number.

253138189 is a deficient number, since it is larger than the sum of its proper divisors (1).

253138189 is an equidigital number, since it uses as much as digits as its factorization.

253138189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 253138189 is about 15910.3170615799. The cubic root of 253138189 is about 632.5854854852.

The spelling of 253138189 in words is "two hundred fifty-three million, one hundred thirty-eight thousand, one hundred eighty-nine".