45999 has 12 divisors (see below), whose sum is σ = 70200. Its totient is φ = 28944.

The previous prime is 45989. The next prime is 46021. The reversal of 45999 is 99954.

It is not a de Polignac number, because 45999 - 2¹¹ = 43951 is a prime.

45999 is a modest number, since divided by 999 gives 45 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37 + ... + 305.

It is an arithmetic number, because the mean of its divisors is an integer number (5850).

2⁴⁵⁹⁹⁹ is an apocalyptic number.

45999 is a deficient number, since it is larger than the sum of its proper divisors (24201).

45999 is a wasteful number, since it uses less digits than its factorization.

45999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 291 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 45999 is about 214.4737746206. The cubic root of 45999 is about 35.8302190671.

The spelling of 45999 in words is "forty-five thousand, nine hundred ninety-nine".