331225707 has 4 divisors (see below), whose sum is σ = 441634280. Its totient is φ = 220817136.

The previous prime is 331225703. The next prime is 331225709. The reversal of 331225707 is 707522133.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 331225707 - 2² = 331225703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331225703) by changing a digit.

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, 55204282 + ... + 55204287.

It is an arithmetic number, because the mean of its divisors is an integer number (110408570).

Almost surely, 2^331225707 is an apocalyptic number.

331225707 is a deficient number, since it is larger than the sum of its proper divisors (110408573).

331225707 is a wasteful number, since it uses less digits than its factorization.

331225707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110408572.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 331225707 is about 18199.6073309289. The cubic root of 331225707 is about 691.8968370331.

The spelling of 331225707 in words is "three hundred thirty-one million, two hundred twenty-five thousand, seven hundred seven".