45378213 has 16 divisors (see below), whose sum is σ = 63974400. Its totient is φ = 28531440.

The previous prime is 45378211. The next prime is 45378217. The reversal of 45378213 is 31287354.

45378213 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 45378213 - 2¹ = 45378211 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45378211) 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, 11958 + ... + 15288.

It is an arithmetic number, because the mean of its divisors is an integer number (3998400).

Almost surely, 2^45378213 is an apocalyptic number.

It is an amenable number.

45378213 is a deficient number, since it is larger than the sum of its proper divisors (18596187).

45378213 is a wasteful number, since it uses less digits than its factorization.

45378213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592.

The product of its digits is 20160, while the sum is 33.

The square root of 45378213 is about 6736.3352796606. The cubic root of 45378213 is about 356.6830429879.

The spelling of 45378213 in words is "forty-five million, three hundred seventy-eight thousand, two hundred thirteen".