234425309 has 2 divisors, whose sum is σ = 234425310. Its totient is φ = 234425308.

The previous prime is 234425297. The next prime is 234425339. The reversal of 234425309 is 903524432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228916900 + 5508409 = 15130^2 + 2347^2 .

It is a cyclic number.

It is not a de Polignac number, because 234425309 - 2²⁰ = 233376733 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 (234425339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117212654 + 117212655.

It is an arithmetic number, because the mean of its divisors is an integer number (117212655).

Almost surely, 2^234425309 is an apocalyptic number.

It is an amenable number.

234425309 is a deficient number, since it is larger than the sum of its proper divisors (1).

234425309 is an equidigital number, since it uses as much as digits as its factorization.

234425309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 234425309 is about 15310.9538892912. The cubic root of 234425309 is about 616.5971301513.

The spelling of 234425309 in words is "two hundred thirty-four million, four hundred twenty-five thousand, three hundred nine".