45045155 has 16 divisors (see below), whose sum is σ = 59724864. Its totient is φ = 32440320.

The previous prime is 45045137. The next prime is 45045157. The reversal of 45045155 is 55154054.

It is a happy number.

It is not a de Polignac number, because 45045155 - 2²² = 40850851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45045157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9566 + ... + 13475.

It is an arithmetic number, because the mean of its divisors is an integer number (3732804).

Almost surely, 2^45045155 is an apocalyptic number.

45045155 is a deficient number, since it is larger than the sum of its proper divisors (14679709).

45045155 is a wasteful number, since it uses less digits than its factorization.

45045155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23086.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 45045155 is about 6711.5687435949. The cubic root of 45045155 is about 355.8082621716.

The spelling of 45045155 in words is "forty-five million, forty-five thousand, one hundred fifty-five".