45111249 has 16 divisors (see below), whose sum is σ = 67659840. Its totient is φ = 30072708.

The previous prime is 45111221. The next prime is 45111271. The reversal of 45111249 is 94211154.

45111249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45111249 - 2²⁰ = 44062673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45111749) 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 15 ways as a sum of consecutive naturals, for example, 8127 + ... + 12500.

It is an arithmetic number, because the mean of its divisors is an integer number (4228740).

Almost surely, 2^45111249 is an apocalyptic number.

It is an amenable number.

45111249 is a deficient number, since it is larger than the sum of its proper divisors (22548591).

45111249 is an frugal number, since it uses more digits than its factorization.

45111249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20648 (or 20630 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 45111249 is about 6716.4908248281. The cubic root of 45111249 is about 355.9822009575.

The spelling of 45111249 in words is "forty-five million, one hundred eleven thousand, two hundred forty-nine".