3609545 has 4 divisors (see below), whose sum is σ = 4331460. Its totient is φ = 2887632.

The previous prime is 3609533. The next prime is 3609581. The reversal of 3609545 is 5459063.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2042041 + 1567504 = 1429^2 + 1252^2 .

It is a cyclic number.

It is not a de Polignac number, because 3609545 - 2⁶ = 3609481 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360950 + ... + 360959.

It is an arithmetic number, because the mean of its divisors is an integer number (1082865).

Almost surely, 2^3609545 is an apocalyptic number.

It is an amenable number.

3609545 is a deficient number, since it is larger than the sum of its proper divisors (721915).

3609545 is an equidigital number, since it uses as much as digits as its factorization.

3609545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721914.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 3609545 is about 1899.8802593848. The cubic root of 3609545 is about 153.3972192301.

The spelling of 3609545 in words is "three million, six hundred nine thousand, five hundred forty-five".