4164005309 has 4 divisors (see below), whose sum is σ = 4167617916. Its totient is φ = 4160392704.

The previous prime is 4164005303. The next prime is 4164005317. The reversal of 4164005309 is 9035004614.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9035004614 = 2 ⋅4517502307.

It can be written as a sum of positive squares in 2 ways, for example, as 2100847225 + 2063158084 = 45835^2 + 45422^2 .

It is a cyclic number.

It is not a de Polignac number, because 4164005309 - 2²⁴ = 4147228093 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 (4164005303) 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 3 ways as a sum of consecutive naturals, for example, 1804574 + ... + 1806879.

It is an arithmetic number, because the mean of its divisors is an integer number (1041904479).

Almost surely, 2^4164005309 is an apocalyptic number.

It is an amenable number.

4164005309 is a deficient number, since it is larger than the sum of its proper divisors (3612607).

4164005309 is a wasteful number, since it uses less digits than its factorization.

4164005309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3612606.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 4164005309 is about 64529.1043560966. The cubic root of 4164005309 is about 1608.8062996972.

The spelling of 4164005309 in words is "four billion, one hundred sixty-four million, five thousand, three hundred nine".