45331 has 8 divisors (see below), whose sum is σ = 53424. Its totient is φ = 37920.

The previous prime is 45329. The next prime is 45337. The reversal of 45331 is 13354.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45331 - 2¹ = 45329 is a prime.

It is a super-2 number, since 2×45331² = 4109799122, which contains 22 as substring.

It is a Duffinian number.

45331 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (45337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16 + ... + 301.

It is an arithmetic number, because the mean of its divisors is an integer number (6678).

2⁴⁵³³¹ is an apocalyptic number.

45331 is a deficient number, since it is larger than the sum of its proper divisors (8093).

45331 is a wasteful number, since it uses less digits than its factorization.

45331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341.

The product of its digits is 180, while the sum is 16.

The square root of 45331 is about 212.9107794359. The cubic root of 45331 is about 35.6559298434.

Adding to 45331 its reverse (13354), we get a palindrome (58685).

It can be divided in two parts, 453 and 31, that added together give a palindrome (484).

The spelling of 45331 in words is "forty-five thousand, three hundred thirty-one".