45273243 has 4 divisors (see below), whose sum is σ = 60364328. Its totient is φ = 30182160.

The previous prime is 45273233. The next prime is 45273247. The reversal of 45273243 is 34237254.

45273243 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 not a de Polignac number, because 45273243 - 2¹⁷ = 45142171 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 45273243.

It is not an unprimeable number, because it can be changed into a prime (45273247) 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, 7545538 + ... + 7545543.

It is an arithmetic number, because the mean of its divisors is an integer number (15091082).

Almost surely, 2^45273243 is an apocalyptic number.

45273243 is a deficient number, since it is larger than the sum of its proper divisors (15091085).

45273243 is a wasteful number, since it uses less digits than its factorization.

45273243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15091084.

The product of its digits is 20160, while the sum is 30.

The square root of 45273243 is about 6728.5394403243. The cubic root of 45273243 is about 356.4078013133.

The spelling of 45273243 in words is "forty-five million, two hundred seventy-three thousand, two hundred forty-three".