231457427 has 2 divisors, whose sum is σ = 231457428. Its totient is φ = 231457426.

The previous prime is 231457417. The next prime is 231457453. The reversal of 231457427 is 724754132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231457427 - 2¹⁰ = 231456403 is a prime.

It is not a weakly prime, because it can be changed into another prime (231457417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115728713 + 115728714.

It is an arithmetic number, because the mean of its divisors is an integer number (115728714).

Almost surely, 2^231457427 is an apocalyptic number.

231457427 is a deficient number, since it is larger than the sum of its proper divisors (1).

231457427 is an equidigital number, since it uses as much as digits as its factorization.

231457427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 35.

The square root of 231457427 is about 15213.7249547900. The cubic root of 231457427 is about 613.9839808445.

The spelling of 231457427 in words is "two hundred thirty-one million, four hundred fifty-seven thousand, four hundred twenty-seven".