231053189 has 2 divisors, whose sum is σ = 231053190. Its totient is φ = 231053188.

The previous prime is 231053183. The next prime is 231053201. The reversal of 231053189 is 981350132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229764964 + 1288225 = 15158^2 + 1135^2 .

It is a cyclic number.

It is not a de Polignac number, because 231053189 - 2²⁰ = 230004613 is a prime.

It is a super-2 number, since 2×231053189² = 106771152294139442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231053183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115526594 + 115526595.

It is an arithmetic number, because the mean of its divisors is an integer number (115526595).

Almost surely, 2^231053189 is an apocalyptic number.

It is an amenable number.

231053189 is a deficient number, since it is larger than the sum of its proper divisors (1).

231053189 is an equidigital number, since it uses as much as digits as its factorization.

231053189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 231053189 is about 15200.4338424928. The cubic root of 231053189 is about 613.6263336659.

The spelling of 231053189 in words is "two hundred thirty-one million, fifty-three thousand, one hundred eighty-nine".