231333985 has 8 divisors (see below), whose sum is σ = 282306240. Its totient is φ = 181930224.

The previous prime is 231333967. The next prime is 231334003. The reversal of 231333985 is 589333132.

It is an interprime number because it is at equal distance from previous prime (231333967) and next prime (231334003).

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

It is a cyclic number.

It is not a de Polignac number, because 231333985 - 2¹³ = 231325793 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 391797 + ... + 392386.

It is an arithmetic number, because the mean of its divisors is an integer number (35288280).

Almost surely, 2^231333985 is an apocalyptic number.

It is an amenable number.

231333985 is a deficient number, since it is larger than the sum of its proper divisors (50972255).

231333985 is an equidigital number, since it uses as much as digits as its factorization.

231333985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784247.

The product of its digits is 58320, while the sum is 37.

The square root of 231333985 is about 15209.6674848598. The cubic root of 231333985 is about 613.8748104607.

The spelling of 231333985 in words is "two hundred thirty-one million, three hundred thirty-three thousand, nine hundred eighty-five".