331108345 has 16 divisors (see below), whose sum is σ = 436429440. Its totient is φ = 240033024.

The previous prime is 331108343. The next prime is 331108357. The reversal of 331108345 is 543801133.

It is a cyclic number.

It is not a de Polignac number, because 331108345 - 2¹ = 331108343 is a prime.

It is a super-2 number, since 2×331108345² = 219265472257278050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331108343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73584 + ... + 77953.

It is an arithmetic number, because the mean of its divisors is an integer number (27276840).

Almost surely, 2^331108345 is an apocalyptic number.

It is an amenable number.

331108345 is a deficient number, since it is larger than the sum of its proper divisors (105321095).

331108345 is a wasteful number, since it uses less digits than its factorization.

331108345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151584.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 331108345 is about 18196.3827449304. The cubic root of 331108345 is about 691.8151082829.

Adding to 331108345 its reverse (543801133), we get a palindrome (874909478).

The spelling of 331108345 in words is "three hundred thirty-one million, one hundred eight thousand, three hundred forty-five".