5745645 has 12 divisors (see below), whose sum is σ = 9959196. Its totient is φ = 3064320.

The previous prime is 5745631. The next prime is 5745647. The reversal of 5745645 is 5465475.

It is a happy number.

5745645 is a `hidden beast` number, since 5 + 7 + 4 + 5 + 645 = 666.

5745645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2082249 + 3663396 = 1443^2 + 1914^2 .

It is not a de Polignac number, because 5745645 - 2⁴ = 5745629 is a prime.

It is a super-3 number, since 3×5745645³ (a number of 21 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

5745645 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5745647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63796 + ... + 63885.

It is an arithmetic number, because the mean of its divisors is an integer number (829933).

Almost surely, 2^5745645 is an apocalyptic number.

It is an amenable number.

5745645 is a deficient number, since it is larger than the sum of its proper divisors (4213551).

5745645 is a wasteful number, since it uses less digits than its factorization.

5745645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127692 (or 127689 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 5745645 is about 2397.0075093750. The cubic root of 5745645 is about 179.1071526388.

Subtracting from 5745645 its sum of digits (36), we obtain a square (5745609 = 2397²).

The spelling of 5745645 in words is "five million, seven hundred forty-five thousand, six hundred forty-five".