23034509 has 2 divisors, whose sum is σ = 23034510. Its totient is φ = 23034508.

The previous prime is 23034499. The next prime is 23034511. The reversal of 23034509 is 90543032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19386409 + 3648100 = 4403^2 + 1910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23034509 is a prime.

Together with 23034511, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23030509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11517254 + 11517255.

It is an arithmetic number, because the mean of its divisors is an integer number (11517255).

Almost surely, 2^23034509 is an apocalyptic number.

It is an amenable number.

23034509 is a deficient number, since it is larger than the sum of its proper divisors (1).

23034509 is an equidigital number, since it uses as much as digits as its factorization.

23034509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 23034509 is about 4799.4279867501. The cubic root of 23034509 is about 284.5288573535.

The spelling of 23034509 in words is "twenty-three million, thirty-four thousand, five hundred nine".