234253309 has 2 divisors, whose sum is σ = 234253310. Its totient is φ = 234253308.

The previous prime is 234253273. The next prime is 234253343. The reversal of 234253309 is 903352432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231709284 + 2544025 = 15222^2 + 1595^2 .

It is a cyclic number.

It is not a de Polignac number, because 234253309 - 2²⁷ = 100035581 is a prime.

It is a super-2 number, since 2×234253309² = 109749225554898962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234253609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117126654 + 117126655.

It is an arithmetic number, because the mean of its divisors is an integer number (117126655).

Almost surely, 2^234253309 is an apocalyptic number.

It is an amenable number.

234253309 is a deficient number, since it is larger than the sum of its proper divisors (1).

234253309 is an equidigital number, since it uses as much as digits as its factorization.

234253309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 234253309 is about 15305.3359649503. The cubic root of 234253309 is about 616.4462922644.

The spelling of 234253309 in words is "two hundred thirty-four million, two hundred fifty-three thousand, three hundred nine".