331633045 has 16 divisors (see below), whose sum is σ = 402779520. Its totient is φ = 262108224.

The previous prime is 331633039. The next prime is 331633079. The reversal of 331633045 is 540336133.

It is a cyclic number.

It is not a de Polignac number, because 331633045 - 2²¹ = 329535893 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 253864 + ... + 255166.

It is an arithmetic number, because the mean of its divisors is an integer number (25173720).

Almost surely, 2^331633045 is an apocalyptic number.

It is an amenable number.

331633045 is a deficient number, since it is larger than the sum of its proper divisors (71146475).

331633045 is a wasteful number, since it uses less digits than its factorization.

331633045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884.

The product of its (nonzero) digits is 9720, while the sum is 28.

The square root of 331633045 is about 18210.7947382864. The cubic root of 331633045 is about 692.1803500715.

Adding to 331633045 its reverse (540336133), we get a palindrome (871969178).

The spelling of 331633045 in words is "three hundred thirty-one million, six hundred thirty-three thousand, forty-five".