2008139995 has 4 divisors (see below), whose sum is σ = 2409768000. Its totient is φ = 1606511992.

The previous prime is 2008139981. The next prime is 2008139999. The reversal of 2008139995 is 5999318002.

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 2008139995 - 2¹³ = 2008131803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2008139999) 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, 200813995 + ... + 200814004.

It is an arithmetic number, because the mean of its divisors is an integer number (602442000).

Almost surely, 2^2008139995 is an apocalyptic number.

2008139995 is a deficient number, since it is larger than the sum of its proper divisors (401628005).

2008139995 is an equidigital number, since it uses as much as digits as its factorization.

2008139995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401628004.

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 2008139995 is about 44812.2750482499. The cubic root of 2008139995 is about 1261.6280280273.

The spelling of 2008139995 in words is "two billion, eight million, one hundred thirty-nine thousand, nine hundred ninety-five".