3605545 has 4 divisors (see below), whose sum is σ = 4326660. Its totient is φ = 2884432.

The previous prime is 3605531. The next prime is 3605561. The reversal of 3605545 is 5455063.

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 553536 + 3052009 = 744^2 + 1747^2 .

It is a cyclic number.

It is not a de Polignac number, because 3605545 - 2⁹ = 3605033 is a prime.

3605545 is a lucky 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, 360550 + ... + 360559.

It is an arithmetic number, because the mean of its divisors is an integer number (1081665).

Almost surely, 2^3605545 is an apocalyptic number.

It is an amenable number.

3605545 is a deficient number, since it is larger than the sum of its proper divisors (721115).

3605545 is an equidigital number, since it uses as much as digits as its factorization.

3605545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721114.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 3605545 is about 1898.8272696588. The cubic root of 3605545 is about 153.3405347384.

It can be divided in two parts, 36055 and 45, that added together give a square (36100 = 190²).

The spelling of 3605545 in words is "three million, six hundred five thousand, five hundred forty-five".