331252231 has 8 divisors (see below), whose sum is σ = 340557824. Its totient is φ = 321965280.

The previous prime is 331252189. The next prime is 331252241. The reversal of 331252231 is 132252133.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331252231 is a prime.

It is a super-2 number, since 2×331252231² = 219456081084954722, 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 (331252241) 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, 36346 + ... + 44536.

It is an arithmetic number, because the mean of its divisors is an integer number (42569728).

Almost surely, 2^331252231 is an apocalyptic number.

331252231 is a deficient number, since it is larger than the sum of its proper divisors (9305593).

331252231 is a wasteful number, since it uses less digits than its factorization.

331252231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9321.

The product of its digits is 1080, while the sum is 22.

The square root of 331252231 is about 18200.3360133817. The cubic root of 331252231 is about 691.9153051869.

The spelling of 331252231 in words is "three hundred thirty-one million, two hundred fifty-two thousand, two hundred thirty-one".