45155 has 8 divisors (see below), whose sum is σ = 59184. Its totient is φ = 32800.

The previous prime is 45139. The next prime is 45161. The reversal of 45155 is 55154.

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

It is not a de Polignac number, because 45155 - 2⁴ = 45139 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 356 + ... + 465.

It is an arithmetic number, because the mean of its divisors is an integer number (7398).

2⁴⁵¹⁵⁵ is an apocalyptic number.

45155 is a deficient number, since it is larger than the sum of its proper divisors (14029).

45155 is a wasteful number, since it uses less digits than its factorization.

45155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837.

The product of its digits is 500, while the sum is 20.

The square root of 45155 is about 212.4970588032. The cubic root of 45155 is about 35.6097246505.

Subtracting 45155 from its reverse (55154), we obtain a palindrome (9999).

The spelling of 45155 in words is "forty-five thousand, one hundred fifty-five".