331338901 has 8 divisors (see below), whose sum is σ = 335410200. Its totient is φ = 327275520.

The previous prime is 331338869. The next prime is 331338907. The reversal of 331338901 is 109833133.

It can be written as a sum of positive squares in 4 ways, for example, as 60078001 + 271260900 = 7751^2 + 16470^2 .

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 331338901 - 2⁵ = 331338869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331338907) 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, 158181 + ... + 160261.

It is an arithmetic number, because the mean of its divisors is an integer number (41926275).

Almost surely, 2^331338901 is an apocalyptic number.

It is an amenable number.

331338901 is a deficient number, since it is larger than the sum of its proper divisors (4071299).

331338901 is a wasteful number, since it uses less digits than its factorization.

331338901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 331338901 is about 18202.7168576562. The cubic root of 331338901 is about 691.9756449769.

The spelling of 331338901 in words is "three hundred thirty-one million, three hundred thirty-eight thousand, nine hundred one".