231032986 has 8 divisors (see below), whose sum is σ = 352230804. Its totient is φ = 113622720.

The previous prime is 231032983. The next prime is 231033001. The reversal of 231032986 is 689230132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 220671025 + 10361961 = 14855^2 + 3219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (231032983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946735 + ... + 946978.

Almost surely, 2^231032986 is an apocalyptic number.

231032986 is a deficient number, since it is larger than the sum of its proper divisors (121197818).

231032986 is a wasteful number, since it uses less digits than its factorization.

231032986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893776.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 231032986 is about 15199.7692745647. The cubic root of 231032986 is about 613.6084482398.

The spelling of 231032986 in words is "two hundred thirty-one million, thirty-two thousand, nine hundred eighty-six".