3520545 has 16 divisors (see below), whose sum is σ = 6437760. Its totient is φ = 1609344.

The previous prime is 3520537. The next prime is 3520549. The reversal of 3520545 is 5450253.

It is not a de Polignac number, because 3520545 - 2³ = 3520537 is a prime.

It is a Curzon number.

3520545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3520549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16660 + ... + 16869.

It is an arithmetic number, because the mean of its divisors is an integer number (402360).

Almost surely, 2^3520545 is an apocalyptic number.

3520545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3520545 is a deficient number, since it is larger than the sum of its proper divisors (2917215).

3520545 is a wasteful number, since it uses less digits than its factorization.

3520545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33544.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 3520545 is about 1876.3115412958. The cubic root of 3520545 is about 152.1259488173.

Adding to 3520545 its reverse (5450253), we get a palindrome (8970798).

The spelling of 3520545 in words is "three million, five hundred twenty thousand, five hundred forty-five".