3531505 has 4 divisors (see below), whose sum is σ = 4237812. Its totient is φ = 2825200.

The previous prime is 3531499. The next prime is 3531509. The reversal of 3531505 is 5051353.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5051353 = 1583 ⋅3191.

It can be written as a sum of positive squares in 2 ways, for example, as 2241009 + 1290496 = 1497^2 + 1136^2 .

It is not a de Polignac number, because 3531505 - 2³ = 3531497 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3531509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353146 + ... + 353155.

It is an arithmetic number, because the mean of its divisors is an integer number (1059453).

Almost surely, 2^3531505 is an apocalyptic number.

It is an amenable number.

3531505 is a deficient number, since it is larger than the sum of its proper divisors (706307).

3531505 is an equidigital number, since it uses as much as digits as its factorization.

3531505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706306.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 3531505 is about 1879.2298954625. The cubic root of 3531505 is about 152.2836491353.

Adding to 3531505 its reverse (5051353), we get a palindrome (8582858).

The spelling of 3531505 in words is "three million, five hundred thirty-one thousand, five hundred five".