45111091 has 4 divisors (see below), whose sum is σ = 45414000. Its totient is φ = 44808184.

The previous prime is 45111089. The next prime is 45111127. The reversal of 45111091 is 19011154.

45111091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45111091 - 2¹ = 45111089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45111061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151231 + ... + 151528.

It is an arithmetic number, because the mean of its divisors is an integer number (11353500).

Almost surely, 2^45111091 is an apocalyptic number.

45111091 is a deficient number, since it is larger than the sum of its proper divisors (302909).

45111091 is a wasteful number, since it uses less digits than its factorization.

45111091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302908.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 45111091 is about 6716.4790627233. The cubic root of 45111091 is about 355.9817853535.

The spelling of 45111091 in words is "forty-five million, one hundred eleven thousand, ninety-one".