2009073019 has 4 divisors (see below), whose sum is σ = 2009329480. Its totient is φ = 2008816560.

The previous prime is 2009072987. The next prime is 2009073029. The reversal of 2009073019 is 9103709002.

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

It is a cyclic number.

It is not a de Polignac number, because 2009073019 - 2⁵ = 2009072987 is a prime.

It is a super-2 number, since 2×2009073019² = 8072748791347548722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009073029) 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, 116097 + ... + 132274.

It is an arithmetic number, because the mean of its divisors is an integer number (502332370).

Almost surely, 2^2009073019 is an apocalyptic number.

2009073019 is a deficient number, since it is larger than the sum of its proper divisors (256461).

2009073019 is an equidigital number, since it uses as much as digits as its factorization.

2009073019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256460.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 2009073019 is about 44822.6842011944. The cubic root of 2009073019 is about 1261.8233907299.

The spelling of 2009073019 in words is "two billion, nine million, seventy-three thousand, nineteen".