231253349 has 2 divisors, whose sum is σ = 231253350. Its totient is φ = 231253348.

The previous prime is 231253343. The next prime is 231253369. The reversal of 231253349 is 943352132.

231253349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230584225 + 669124 = 15185^2 + 818^2 .

It is a cyclic number.

It is not a de Polignac number, because 231253349 - 2⁸ = 231253093 is a prime.

It is a super-2 number, since 2×231253349² = 106956222847431602, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231253343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115626674 + 115626675.

It is an arithmetic number, because the mean of its divisors is an integer number (115626675).

Almost surely, 2^231253349 is an apocalyptic number.

It is an amenable number.

231253349 is a deficient number, since it is larger than the sum of its proper divisors (1).

231253349 is an equidigital number, since it uses as much as digits as its factorization.

231253349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 32.

The square root of 231253349 is about 15207.0164397886. The cubic root of 231253349 is about 613.8034761346.

The spelling of 231253349 in words is "two hundred thirty-one million, two hundred fifty-three thousand, three hundred forty-nine".