331285045 has 32 divisors (see below), whose sum is σ = 515047680. Its totient is φ = 198650880.

The previous prime is 331285039. The next prime is 331285049. The reversal of 331285045 is 540582133.

It is not a de Polignac number, because 331285045 - 2²⁵ = 297730613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331284998 and 331285016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331285049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10516 + ... + 27805.

It is an arithmetic number, because the mean of its divisors is an integer number (16095240).

Almost surely, 2^331285045 is an apocalyptic number.

331285045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

331285045 is a deficient number, since it is larger than the sum of its proper divisors (183762635).

331285045 is a wasteful number, since it uses less digits than its factorization.

331285045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38365.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 331285045 is about 18201.2374579313. The cubic root of 331285045 is about 691.9381515831.

The spelling of 331285045 in words is "three hundred thirty-one million, two hundred eighty-five thousand, forty-five".