45305391 has 16 divisors (see below), whose sum is σ = 64309248. Its totient is φ = 28272000.

The previous prime is 45305383. The next prime is 45305401. The reversal of 45305391 is 19350354.

It is not a de Polignac number, because 45305391 - 2³ = 45305383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45305311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7416 + ... + 12066.

It is an arithmetic number, because the mean of its divisors is an integer number (4019328).

Almost surely, 2^45305391 is an apocalyptic number.

45305391 is a deficient number, since it is larger than the sum of its proper divisors (19003857).

45305391 is a wasteful number, since it uses less digits than its factorization.

45305391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4862.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 45305391 is about 6730.9279449419. The cubic root of 45305391 is about 356.4921416896.

The spelling of 45305391 in words is "forty-five million, three hundred five thousand, three hundred ninety-one".