331530245 has 8 divisors (see below), whose sum is σ = 406301184. Its totient is φ = 259580944.

The previous prime is 331530229. The next prime is 331530247. The reversal of 331530245 is 542035133.

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 331530245 - 2⁴ = 331530229 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 (331530247) 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, 705149 + ... + 705618.

It is an arithmetic number, because the mean of its divisors is an integer number (50787648).

Almost surely, 2^331530245 is an apocalyptic number.

It is an amenable number.

331530245 is a deficient number, since it is larger than the sum of its proper divisors (74770939).

331530245 is a wasteful number, since it uses less digits than its factorization.

331530245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410819.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 331530245 is about 18207.9720177729. The cubic root of 331530245 is about 692.1088217214.

Adding to 331530245 its reverse (542035133), we get a palindrome (873565378).

The spelling of 331530245 in words is "three hundred thirty-one million, five hundred thirty thousand, two hundred forty-five".