232661285 has 4 divisors (see below), whose sum is σ = 279193548. Its totient is φ = 186129024.

The previous prime is 232661281. The next prime is 232661311. The reversal of 232661285 is 582166232.

232661285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64673764 + 167987521 = 8042^2 + 12961^2 .

It is a cyclic number.

It is not a de Polignac number, because 232661285 - 2² = 232661281 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 (232661281) 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, 23266124 + ... + 23266133.

It is an arithmetic number, because the mean of its divisors is an integer number (69798387).

Almost surely, 2^232661285 is an apocalyptic number.

It is an amenable number.

232661285 is a deficient number, since it is larger than the sum of its proper divisors (46532263).

232661285 is an equidigital number, since it uses as much as digits as its factorization.

232661285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46532262.

The product of its digits is 34560, while the sum is 35.

The square root of 232661285 is about 15253.2385085922. The cubic root of 232661285 is about 615.0466265572.

The spelling of 232661285 in words is "two hundred thirty-two million, six hundred sixty-one thousand, two hundred eighty-five".