331495201 has 8 divisors (see below), whose sum is σ = 345433320. Its totient is φ = 317724288.

The previous prime is 331495141. The next prime is 331495243. The reversal of 331495201 is 102594133.

It can be written as a sum of positive squares in 4 ways, for example, as 6630625 + 324864576 = 2575^2 + 18024^2 .

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 331495201 - 2⁹ = 331494689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331495201.

It is not an unprimeable number, because it can be changed into a prime (331495271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37746 + ... + 45691.

It is an arithmetic number, because the mean of its divisors is an integer number (43179165).

Almost surely, 2^331495201 is an apocalyptic number.

It is an amenable number.

331495201 is a deficient number, since it is larger than the sum of its proper divisors (13938119).

331495201 is a wasteful number, since it uses less digits than its factorization.

331495201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83603.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 331495201 is about 18207.0096666092. The cubic root of 331495201 is about 692.0844346893.

The spelling of 331495201 in words is "three hundred thirty-one million, four hundred ninety-five thousand, two hundred one".