45099 has 6 divisors (see below), whose sum is σ = 65156. Its totient is φ = 30060.

The previous prime is 45083. The next prime is 45119. The reversal of 45099 is 99054.

It is a happy number.

It is not a de Polignac number, because 45099 - 2⁴ = 45083 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (45599) 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 5 ways as a sum of consecutive naturals, for example, 2497 + ... + 2514.

2⁴⁵⁰⁹⁹ is an apocalyptic number.

45099 is a deficient number, since it is larger than the sum of its proper divisors (20057).

45099 is a wasteful number, since it uses less digits than its factorization.

45099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017 (or 5014 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 45099 is about 212.3652513949. The cubic root of 45099 is about 35.5949978243.

The spelling of 45099 in words is "forty-five thousand, ninety-nine".