3521351065 has 4 divisors (see below), whose sum is σ = 4225621284. Its totient is φ = 2817080848.

The previous prime is 3521351047. The next prime is 3521351069. The reversal of 3521351065 is 5601531253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5601531253 = 647 ⋅8657699.

It can be written as a sum of positive squares in 2 ways, for example, as 734355801 + 2786995264 = 27099^2 + 52792^2 .

It is a cyclic number.

It is not a de Polignac number, because 3521351065 - 2⁵ = 3521351033 is a prime.

It is a Smith number, since the sum of its digits (31) 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 (3521351069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352135102 + ... + 352135111.

It is an arithmetic number, because the mean of its divisors is an integer number (1056405321).

Almost surely, 2^3521351065 is an apocalyptic number.

It is an amenable number.

3521351065 is a deficient number, since it is larger than the sum of its proper divisors (704270219).

3521351065 is an equidigital number, since it uses as much as digits as its factorization.

3521351065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704270218.

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

The square root of 3521351065 is about 59340.9729023716. The cubic root of 3521351065 is about 1521.3755819840.

The spelling of 3521351065 in words is "three billion, five hundred twenty-one million, three hundred fifty-one thousand, sixty-five".