5745609 has 27 divisors (see below), whose sum is σ = 9007687. Its totient is φ = 3528384.

The previous prime is 5745599. The next prime is 5745629. The reversal of 5745609 is 9065475.

The square root of 5745609 is 2397.

It is a perfect power (a square), and thus also a powerful number.

5745609 is a `hidden beast` number, since 5 + 7 + 45 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4473225 + 1272384 = 2115^2 + 1128^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5745609 is a prime.

It is a Duffinian number.

5745609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5745629) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 122224 + ... + 122270.

Almost surely, 2^5745609 is an apocalyptic number.

5745609 is the 2397-th square number.

5745609 is the 1199-th centered octagonal number.

It is an amenable number.

5745609 is a deficient number, since it is larger than the sum of its proper divisors (3262078).

5745609 is a wasteful number, since it uses less digits than its factorization.

5745609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The cubic root of 5745609 is about 179.1067785659.

Multiplying 5745609 by its sum of digits (36), we get a square (206841924 = 14382²).

The spelling of 5745609 in words is "five million, seven hundred forty-five thousand, six hundred nine".