45165420 has 36 divisors (see below), whose sum is σ = 137002320. Its totient is φ = 12044064.

The previous prime is 45165371. The next prime is 45165433. The reversal of 45165420 is 2456154.

45165420 is a `hidden beast` number, since 4 + 5 + 1 + 654 + 2 + 0 = 666.

45165420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 125280 + ... + 125639.

It is an arithmetic number, because the mean of its divisors is an integer number (3805620).

Almost surely, 2^45165420 is an apocalyptic number.

It is an amenable number.

45165420 is an abundant number, since it is smaller than the sum of its proper divisors (91836900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45165420 is a wasteful number, since it uses less digits than its factorization.

45165420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250934 (or 250929 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 45165420 is about 6720.5223011311. The cubic root of 45165420 is about 356.1246354831.

The spelling of 45165420 in words is "forty-five million, one hundred sixty-five thousand, four hundred twenty".