331132427 has 8 divisors (see below), whose sum is σ = 336107520. Its totient is φ = 326166120.

The previous prime is 331132423. The next prime is 331132433. The reversal of 331132427 is 724231133.

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 331132427 - 2² = 331132423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331132396 and 331132405.

It is not an unprimeable number, because it can be changed into a prime (331132423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146774 + ... + 149012.

It is an arithmetic number, because the mean of its divisors is an integer number (42013440).

Almost surely, 2^331132427 is an apocalyptic number.

331132427 is a deficient number, since it is larger than the sum of its proper divisors (4975093).

331132427 is a wasteful number, since it uses less digits than its factorization.

331132427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393.

The product of its digits is 3024, while the sum is 26.

The square root of 331132427 is about 18197.0444578234. The cubic root of 331132427 is about 691.8318801219.

The spelling of 331132427 in words is "three hundred thirty-one million, one hundred thirty-two thousand, four hundred twenty-seven".