232227509 has 2 divisors, whose sum is σ = 232227510. Its totient is φ = 232227508.

The previous prime is 232227491. The next prime is 232227511. The reversal of 232227509 is 905722232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137710225 + 94517284 = 11735^2 + 9722^2 .

It is a cyclic number.

It is not a de Polignac number, because 232227509 - 2¹² = 232223413 is a prime.

Together with 232227511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232227539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116113754 + 116113755.

It is an arithmetic number, because the mean of its divisors is an integer number (116113755).

Almost surely, 2^232227509 is an apocalyptic number.

It is an amenable number.

232227509 is a deficient number, since it is larger than the sum of its proper divisors (1).

232227509 is an equidigital number, since it uses as much as digits as its factorization.

232227509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 232227509 is about 15239.0127304888. The cubic root of 232227509 is about 614.6641557608.

The spelling of 232227509 in words is "two hundred thirty-two million, two hundred twenty-seven thousand, five hundred nine".