231238927 has 2 divisors, whose sum is σ = 231238928. Its totient is φ = 231238926.

The previous prime is 231238921. The next prime is 231238963. The reversal of 231238927 is 729832132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231238927 - 2¹⁵ = 231206159 is a prime.

It is a super-2 number, since 2×231238927² = 106942882720222658, 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 (231238921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115619463 + 115619464.

It is an arithmetic number, because the mean of its divisors is an integer number (115619464).

Almost surely, 2^231238927 is an apocalyptic number.

231238927 is a deficient number, since it is larger than the sum of its proper divisors (1).

231238927 is an equidigital number, since it uses as much as digits as its factorization.

231238927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 231238927 is about 15206.5422433898. The cubic root of 231238927 is about 613.7907160199.

The spelling of 231238927 in words is "two hundred thirty-one million, two hundred thirty-eight thousand, nine hundred twenty-seven".