331564941 has 16 divisors (see below), whose sum is σ = 512565120. Its totient is φ = 211432320.

The previous prime is 331564907. The next prime is 331564943. The reversal of 331564941 is 149465133.

331564941 is a `hidden beast` number, since 3 + 3 + 1 + 5 + 649 + 4 + 1 = 666.

It is not a de Polignac number, because 331564941 - 2⁷ = 331564813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331564896 and 331564905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331564943) 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, 266340 + ... + 267581.

It is an arithmetic number, because the mean of its divisors is an integer number (32035320).

Almost surely, 2^331564941 is an apocalyptic number.

It is an amenable number.

331564941 is a deficient number, since it is larger than the sum of its proper divisors (181000179).

331564941 is a wasteful number, since it uses less digits than its factorization.

331564941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533953 (or 533947 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 331564941 is about 18208.9247623247. The cubic root of 331564941 is about 692.1329648882.

The spelling of 331564941 in words is "three hundred thirty-one million, five hundred sixty-four thousand, nine hundred forty-one".