231134269 has 2 divisors, whose sum is σ = 231134270. Its totient is φ = 231134268.

The previous prime is 231134251. The next prime is 231134317. The reversal of 231134269 is 962431132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136305625 + 94828644 = 11675^2 + 9738^2 .

It is a cyclic number.

It is not a de Polignac number, because 231134269 - 2²¹ = 229037117 is a prime.

It is a super-2 number, since 2×231134269² = 106846100612328722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231134269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231134249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115567134 + 115567135.

It is an arithmetic number, because the mean of its divisors is an integer number (115567135).

Almost surely, 2^231134269 is an apocalyptic number.

It is an amenable number.

231134269 is a deficient number, since it is larger than the sum of its proper divisors (1).

231134269 is an equidigital number, since it uses as much as digits as its factorization.

231134269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 31.

The square root of 231134269 is about 15203.1006376989. The cubic root of 231134269 is about 613.6981021402.

The spelling of 231134269 in words is "two hundred thirty-one million, one hundred thirty-four thousand, two hundred sixty-nine".