232286981 has 4 divisors (see below), whose sum is σ = 234342732. Its totient is φ = 230231232.

The previous prime is 232286941. The next prime is 232286983. The reversal of 232286981 is 189682232.

232286981 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 63520900 + 168766081 = 7970^2 + 12991^2 .

It is a cyclic number.

It is not a de Polignac number, because 232286981 - 2⁶ = 232286917 is a prime.

It is a super-2 number, since 2×232286981² = 107914483084188722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232286983) 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, 1027706 + ... + 1027931.

It is an arithmetic number, because the mean of its divisors is an integer number (58585683).

Almost surely, 2^232286981 is an apocalyptic number.

It is an amenable number.

232286981 is a deficient number, since it is larger than the sum of its proper divisors (2055751).

232286981 is a wasteful number, since it uses less digits than its factorization.

232286981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055750.

The product of its digits is 82944, while the sum is 41.

The square root of 232286981 is about 15240.9639130863. The cubic root of 232286981 is about 614.7166218198.

The spelling of 232286981 in words is "two hundred thirty-two million, two hundred eighty-six thousand, nine hundred eighty-one".