3531005 has 4 divisors (see below), whose sum is σ = 4237212. Its totient is φ = 2824800.

The previous prime is 3531001. The next prime is 3531007. The reversal of 3531005 is 5001353.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5001353 = 7 ⋅714479.

It can be written as a sum of positive squares in 2 ways, for example, as 2199289 + 1331716 = 1483^2 + 1154^2 .

It is not a de Polignac number, because 3531005 - 2² = 3531001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3531001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353096 + ... + 353105.

It is an arithmetic number, because the mean of its divisors is an integer number (1059303).

Almost surely, 2^3531005 is an apocalyptic number.

It is an amenable number.

3531005 is a deficient number, since it is larger than the sum of its proper divisors (706207).

3531005 is an equidigital number, since it uses as much as digits as its factorization.

3531005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706206.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 3531005 is about 1879.0968575356. The cubic root of 3531005 is about 152.2764618862.

Adding to 3531005 its reverse (5001353), we get a palindrome (8532358).

The spelling of 3531005 in words is "three million, five hundred thirty-one thousand, five".