3102040309 has 4 divisors (see below), whose sum is σ = 3134020204. Its totient is φ = 3070060416.

The previous prime is 3102040237. The next prime is 3102040363. The reversal of 3102040309 is 9030402013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2405608209 + 696432100 = 49047^2 + 26390^2 .

It is a cyclic number.

It is not a de Polignac number, because 3102040309 - 2⁷ = 3102040181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3102040309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3102040369) 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, 15989802 + ... + 15989995.

It is an arithmetic number, because the mean of its divisors is an integer number (783505051).

Almost surely, 2^3102040309 is an apocalyptic number.

It is an amenable number.

3102040309 is a deficient number, since it is larger than the sum of its proper divisors (31979895).

3102040309 is an equidigital number, since it uses as much as digits as its factorization.

3102040309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31979894.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3102040309 is about 55695.9631301946. The cubic root of 3102040309 is about 1458.4195553513.

The spelling of 3102040309 in words is "three billion, one hundred two million, forty thousand, three hundred nine".