45573381 has 80 divisors (see below), whose sum is σ = 85150400. Its totient is φ = 24004512.

The previous prime is 45573377. The next prime is 45573383. The reversal of 45573381 is 18337554.

45573381 is a `hidden beast` number, since 4 + 5 + 573 + 3 + 81 = 666.

45573381 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 45573381 - 2² = 45573377 is a prime.

It is a super-2 number, since 2×45573381² = 4153866111542322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45573383) 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 79 ways as a sum of consecutive naturals, for example, 1231695 + ... + 1231731.

It is an arithmetic number, because the mean of its divisors is an integer number (1064380).

Almost surely, 2^45573381 is an apocalyptic number.

It is an amenable number.

45573381 is a deficient number, since it is larger than the sum of its proper divisors (39577019).

45573381 is an equidigital number, since it uses as much as digits as its factorization.

45573381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 66 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 45573381 is about 6750.8059518846. The cubic root of 45573381 is about 357.1936665464.

It can be divided in two parts, 45573 and 381, that added together give a palindrome (45954).

The spelling of 45573381 in words is "forty-five million, five hundred seventy-three thousand, three hundred eighty-one".