231073457 has 2 divisors, whose sum is σ = 231073458. Its totient is φ = 231073456.

The previous prime is 231073369. The next prime is 231073463. The reversal of 231073457 is 754370132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210859441 + 20214016 = 14521^2 + 4496^2 .

It is a cyclic number.

It is not a de Polignac number, because 231073457 - 2¹⁶ = 231007921 is a prime.

It is not a weakly prime, because it can be changed into another prime (231073757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115536728 + 115536729.

It is an arithmetic number, because the mean of its divisors is an integer number (115536729).

Almost surely, 2^231073457 is an apocalyptic number.

It is an amenable number.

231073457 is a deficient number, since it is larger than the sum of its proper divisors (1).

231073457 is an equidigital number, since it uses as much as digits as its factorization.

231073457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 231073457 is about 15201.1005193703. The cubic root of 231073457 is about 613.6442755879.

The spelling of 231073457 in words is "two hundred thirty-one million, seventy-three thousand, four hundred fifty-seven".