2009235719 has 2 divisors, whose sum is σ = 2009235720. Its totient is φ = 2009235718.

The previous prime is 2009235707. The next prime is 2009235733. The reversal of 2009235719 is 9175329002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2009235719 - 2⁴ = 2009235703 is a prime.

It is a super-2 number, since 2×2009235719² = 8074056349010893922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2009235779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004617859 + 1004617860.

It is an arithmetic number, because the mean of its divisors is an integer number (1004617860).

Almost surely, 2^2009235719 is an apocalyptic number.

2009235719 is a deficient number, since it is larger than the sum of its proper divisors (1).

2009235719 is an equidigital number, since it uses as much as digits as its factorization.

2009235719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 2009235719 is about 44824.4990936876. The cubic root of 2009235719 is about 1261.8574517325.

The spelling of 2009235719 in words is "two billion, nine million, two hundred thirty-five thousand, seven hundred nineteen".