45499 has 4 divisors (see below), whose sum is σ = 45936. Its totient is φ = 45064.

The previous prime is 45497. The next prime is 45503. The reversal of 45499 is 99454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 99454 = 2 ⋅49727.

It is a cyclic number.

It is not a de Polignac number, because 45499 - 2¹ = 45497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45499.

It is not an unprimeable number, because it can be changed into a prime (45491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42 + ... + 304.

It is an arithmetic number, because the mean of its divisors is an integer number (11484).

2⁴⁵⁴⁹⁹ is an apocalyptic number.

45499 is a deficient number, since it is larger than the sum of its proper divisors (437).

45499 is a wasteful number, since it uses less digits than its factorization.

45499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436.

The product of its digits is 6480, while the sum is 31.

The square root of 45499 is about 213.3049460280. The cubic root of 45499 is about 35.6999233679.

The spelling of 45499 in words is "forty-five thousand, four hundred ninety-nine".