234256513 has 2 divisors, whose sum is σ = 234256514. Its totient is φ = 234256512.

The previous prime is 234256511. The next prime is 234256537. The reversal of 234256513 is 315652432.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204575809 + 29680704 = 14303^2 + 5448^2 .

It is a cyclic number.

It is not a de Polignac number, because 234256513 - 2¹ = 234256511 is a prime.

It is a super-2 number, since 2×234256513² = 109752227765838338, which contains 22 as substring.

Together with 234256511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (234256511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117128256 + 117128257.

It is an arithmetic number, because the mean of its divisors is an integer number (117128257).

Almost surely, 2^234256513 is an apocalyptic number.

It is an amenable number.

234256513 is a deficient number, since it is larger than the sum of its proper divisors (1).

234256513 is an equidigital number, since it uses as much as digits as its factorization.

234256513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 31.

The square root of 234256513 is about 15305.4406339707. The cubic root of 234256513 is about 616.4491027333.

The spelling of 234256513 in words is "two hundred thirty-four million, two hundred fifty-six thousand, five hundred thirteen".