45022155 has 32 divisors (see below), whose sum is σ = 77220864. Its totient is φ = 22340736.

The previous prime is 45022151. The next prime is 45022157. The reversal of 45022155 is 55122054.

It is a happy number.

It is not a de Polignac number, because 45022155 - 2² = 45022151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45022151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11002 + ... + 14528.

It is an arithmetic number, because the mean of its divisors is an integer number (2413152).

Almost surely, 2^45022155 is an apocalyptic number.

45022155 is a deficient number, since it is larger than the sum of its proper divisors (32198709).

45022155 is a wasteful number, since it uses less digits than its factorization.

45022155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 45022155 is about 6709.8550654988. The cubic root of 45022155 is about 355.7476934433.

The spelling of 45022155 in words is "forty-five million, twenty-two thousand, one hundred fifty-five".