231277 has 2 divisors, whose sum is σ = 231278. Its totient is φ = 231276.

The previous prime is 231271. The next prime is 231289. The reversal of 231277 is 772132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137641 + 93636 = 371^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 231277 - 2³ = 231269 is a prime.

It is a Chen prime.

231277 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115638 + 115639.

It is an arithmetic number, because the mean of its divisors is an integer number (115639).

2²³¹²⁷⁷ is an apocalyptic number.

It is an amenable number.

231277 is a deficient number, since it is larger than the sum of its proper divisors (1).

231277 is an equidigital number, since it uses as much as digits as its factorization.

231277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 588, while the sum is 22.

The square root of 231277 is about 480.9126739856. The cubic root of 231277 is about 61.3824400619.

The spelling of 231277 in words is "two hundred thirty-one thousand, two hundred seventy-seven".