331138486 has 8 divisors (see below), whose sum is σ = 567666000. Its totient is φ = 141916488.

The previous prime is 331138471. The next prime is 331138523. The reversal of 331138486 is 684831133.

331138486 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11826361 + ... + 11826388.

It is an arithmetic number, because the mean of its divisors is an integer number (70958250).

Almost surely, 2^331138486 is an apocalyptic number.

331138486 is a deficient number, since it is larger than the sum of its proper divisors (236527514).

331138486 is a wasteful number, since it uses less digits than its factorization.

331138486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23652758.

The product of its digits is 41472, while the sum is 37.

The square root of 331138486 is about 18197.2109401413. The cubic root of 331138486 is about 691.8360997668.

The spelling of 331138486 in words is "three hundred thirty-one million, one hundred thirty-eight thousand, four hundred eighty-six".