331985107 has 4 divisors (see below), whose sum is σ = 342694336. Its totient is φ = 321275880.

The previous prime is 331985099. The next prime is 331985117. The reversal of 331985107 is 701589133.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 331985107 - 2³ = 331985099 is a prime.

It is a super-2 number, since 2×331985107² = 220428222539602898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331985117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5354568 + ... + 5354629.

It is an arithmetic number, because the mean of its divisors is an integer number (85673584).

Almost surely, 2^331985107 is an apocalyptic number.

331985107 is a deficient number, since it is larger than the sum of its proper divisors (10709229).

331985107 is a wasteful number, since it uses less digits than its factorization.

331985107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10709228.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 331985107 is about 18220.4584739243. The cubic root of 331985107 is about 692.4252032497.

The spelling of 331985107 in words is "three hundred thirty-one million, nine hundred eighty-five thousand, one hundred seven".