231417253 has 2 divisors, whose sum is σ = 231417254. Its totient is φ = 231417252.

The previous prime is 231417223. The next prime is 231417281. The reversal of 231417253 is 352714132.

It is an a-pointer prime, because the next prime (231417281) can be obtained adding 231417253 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148279329 + 83137924 = 12177^2 + 9118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231417253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231417223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115708626 + 115708627.

It is an arithmetic number, because the mean of its divisors is an integer number (115708627).

Almost surely, 2^231417253 is an apocalyptic number.

It is an amenable number.

231417253 is a deficient number, since it is larger than the sum of its proper divisors (1).

231417253 is an equidigital number, since it uses as much as digits as its factorization.

231417253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 231417253 is about 15212.4045765290. The cubic root of 231417253 is about 613.9484557805.

The spelling of 231417253 in words is "two hundred thirty-one million, four hundred seventeen thousand, two hundred fifty-three".