331663045 has 16 divisors (see below), whose sum is σ = 455148288. Its totient is φ = 227278080.

The previous prime is 331663043. The next prime is 331663051. The reversal of 331663045 is 540366133.

It is not a de Polignac number, because 331663045 - 2¹ = 331663043 is a prime.

It is a super-2 number, since 2×331663045² = 220000750837344050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331662998 and 331663016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331663043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99760 + ... + 103030.

It is an arithmetic number, because the mean of its divisors is an integer number (28446768).

Almost surely, 2^331663045 is an apocalyptic number.

331663045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

331663045 is a deficient number, since it is larger than the sum of its proper divisors (123485243).

331663045 is a wasteful number, since it uses less digits than its factorization.

331663045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6180.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 331663045 is about 18211.6184069401. The cubic root of 331663045 is about 692.2012213172.

The spelling of 331663045 in words is "three hundred thirty-one million, six hundred sixty-three thousand, forty-five".