231254269 has 2 divisors, whose sum is σ = 231254270. Its totient is φ = 231254268.

The previous prime is 231254267. The next prime is 231254273. The reversal of 231254269 is 962452132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227104900 + 4149369 = 15070^2 + 2037^2 .

It is a cyclic number.

It is not a de Polignac number, because 231254269 - 2¹ = 231254267 is a prime.

It is a super-2 number, since 2×231254269² = 106957073861448722, which contains 22 as substring.

Together with 231254267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231254267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115627134 + 115627135.

It is an arithmetic number, because the mean of its divisors is an integer number (115627135).

Almost surely, 2^231254269 is an apocalyptic number.

It is an amenable number.

231254269 is a deficient number, since it is larger than the sum of its proper divisors (1).

231254269 is an equidigital number, since it uses as much as digits as its factorization.

231254269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 231254269 is about 15207.0466889531. The cubic root of 231254269 is about 613.8042901026.

The spelling of 231254269 in words is "two hundred thirty-one million, two hundred fifty-four thousand, two hundred sixty-nine".