45392091 has 16 divisors (see below), whose sum is σ = 66152448. Its totient is φ = 27561600.

The previous prime is 45392071. The next prime is 45392093. The reversal of 45392091 is 19029354.

45392091 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 45392091 - 2⁵ = 45392059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45392093) 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, 12775 + ... + 15936.

It is an arithmetic number, because the mean of its divisors is an integer number (4134528).

Almost surely, 2^45392091 is an apocalyptic number.

45392091 is a deficient number, since it is larger than the sum of its proper divisors (20760357).

45392091 is a wasteful number, since it uses less digits than its factorization.

45392091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28762.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 45392091 is about 6737.3652862228. The cubic root of 45392091 is about 356.7194006906.

The spelling of 45392091 in words is "forty-five million, three hundred ninety-two thousand, ninety-one".