232405109 has 4 divisors (see below), whose sum is σ = 239902080. Its totient is φ = 224908140.

The previous prime is 232405091. The next prime is 232405127. The reversal of 232405109 is 901504232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (232405091) and next prime (232405127).

It is a cyclic number.

It is not a de Polignac number, because 232405109 - 2⁸ = 232404853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232405009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3748439 + ... + 3748500.

It is an arithmetic number, because the mean of its divisors is an integer number (59975520).

Almost surely, 2^232405109 is an apocalyptic number.

It is an amenable number.

232405109 is a deficient number, since it is larger than the sum of its proper divisors (7496971).

232405109 is an equidigital number, since it uses as much as digits as its factorization.

232405109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7496970.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 232405109 is about 15244.8387659562. The cubic root of 232405109 is about 614.8208075113.

The spelling of 232405109 in words is "two hundred thirty-two million, four hundred five thousand, one hundred nine".