3509123065 has 16 divisors (see below), whose sum is σ = 4835329920. Its totient is φ = 2394846720.

The previous prime is 3509123063. The next prime is 3509123077. The reversal of 3509123065 is 5603219053.

It is a happy number.

It is not a de Polignac number, because 3509123065 - 2¹ = 3509123063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3509123065.

It is not an unprimeable number, because it can be changed into a prime (3509123063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230200 + ... + 244969.

It is an arithmetic number, because the mean of its divisors is an integer number (302208120).

Almost surely, 2^3509123065 is an apocalyptic number.

3509123065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3509123065 is a deficient number, since it is larger than the sum of its proper divisors (1326206855).

3509123065 is a wasteful number, since it uses less digits than its factorization.

3509123065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475392.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 3509123065 is about 59237.8516237718. The cubic root of 3509123065 is about 1519.6125318066.

The spelling of 3509123065 in words is "three billion, five hundred nine million, one hundred twenty-three thousand, sixty-five".