45227813 has 4 divisors (see below), whose sum is σ = 45462348. Its totient is φ = 44993280.

The previous prime is 45227789. The next prime is 45227827. The reversal of 45227813 is 31872254.

45227813 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 can be written as a sum of positive squares in 2 ways, for example, as 27646564 + 17581249 = 5258^2 + 4193^2 .

It is a cyclic number.

It is not a de Polignac number, because 45227813 - 2¹⁴ = 45211429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45227813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45227513) 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, 116978 + ... + 117363.

It is an arithmetic number, because the mean of its divisors is an integer number (11365587).

Almost surely, 2^45227813 is an apocalyptic number.

It is an amenable number.

45227813 is a deficient number, since it is larger than the sum of its proper divisors (234535).

45227813 is a wasteful number, since it uses less digits than its factorization.

45227813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234534.

The product of its digits is 13440, while the sum is 32.

The square root of 45227813 is about 6725.1626746124. The cubic root of 45227813 is about 356.2885474653.

The spelling of 45227813 in words is "forty-five million, two hundred twenty-seven thousand, eight hundred thirteen".