231173273 has 2 divisors, whose sum is σ = 231173274. Its totient is φ = 231173272.

The previous prime is 231173251. The next prime is 231173279. The reversal of 231173273 is 372371132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124835929 + 106337344 = 11173^2 + 10312^2 .

It is a cyclic number.

It is not a de Polignac number, because 231173273 - 2⁸ = 231173017 is a prime.

It is not a weakly prime, because it can be changed into another prime (231173279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115586636 + 115586637.

It is an arithmetic number, because the mean of its divisors is an integer number (115586637).

Almost surely, 2^231173273 is an apocalyptic number.

It is an amenable number.

231173273 is a deficient number, since it is larger than the sum of its proper divisors (1).

231173273 is an equidigital number, since it uses as much as digits as its factorization.

231173273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 29.

The square root of 231173273 is about 15204.3833482322. The cubic root of 231173273 is about 613.7326207984.

The spelling of 231173273 in words is "two hundred thirty-one million, one hundred seventy-three thousand, two hundred seventy-three".