45394215 has 16 divisors (see below), whose sum is σ = 73312128. Its totient is φ = 23983136.

The previous prime is 45394177. The next prime is 45394231. The reversal of 45394215 is 51249354.

45394215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 45394215 - 2¹⁵ = 45361447 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 12537 + ... + 15746.

It is an arithmetic number, because the mean of its divisors is an integer number (4582008).

Almost surely, 2^45394215 is an apocalyptic number.

45394215 is a deficient number, since it is larger than the sum of its proper divisors (27917913).

45394215 is a wasteful number, since it uses less digits than its factorization.

45394215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28398.

The product of its digits is 21600, while the sum is 33.

The square root of 45394215 is about 6737.5229127625. The cubic root of 45394215 is about 356.7249645100.

The spelling of 45394215 in words is "forty-five million, three hundred ninety-four thousand, two hundred fifteen".