3509545 has 8 divisors (see below), whose sum is σ = 4535496. Its totient is φ = 2591616.

The previous prime is 3509543. The next prime is 3509549. The reversal of 3509545 is 5459053.

3509545 is digitally balanced in base 2, 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 4 ways, for example, as 700569 + 2808976 = 837^2 + 1676^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3509545 - 2¹ = 3509543 is a prime.

It is a super-2 number, since 2×3509545² = 24633812214050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3509543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26932 + ... + 27061.

It is an arithmetic number, because the mean of its divisors is an integer number (566937).

Almost surely, 2^3509545 is an apocalyptic number.

It is an amenable number.

3509545 is a deficient number, since it is larger than the sum of its proper divisors (1025951).

3509545 is a wasteful number, since it uses less digits than its factorization.

3509545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54011.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 3509545 is about 1873.3779650674. The cubic root of 3509545 is about 151.9673435153.

The spelling of 3509545 in words is "three million, five hundred nine thousand, five hundred forty-five".