45158 has 8 divisors (see below), whose sum is σ = 68952. Its totient is φ = 22176.

The previous prime is 45139. The next prime is 45161. The reversal of 45158 is 85154.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 35 + ... + 302.

It is an arithmetic number, because the mean of its divisors is an integer number (8619).

2⁴⁵¹⁵⁸ is an apocalyptic number.

45158 is a deficient number, since it is larger than the sum of its proper divisors (23794).

45158 is a wasteful number, since it uses less digits than its factorization.

45158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406.

The product of its digits is 800, while the sum is 23.

The square root of 45158 is about 212.5041176072. The cubic root of 45158 is about 35.6105132439.

The spelling of 45158 in words is "forty-five thousand, one hundred fifty-eight".