2008157017 has 4 divisors (see below), whose sum is σ = 2009408256. Its totient is φ = 2006905780.

The previous prime is 2008157009. The next prime is 2008157023. The reversal of 2008157017 is 7107518002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2008157017 - 2³ = 2008157009 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 2008157017.

It is not an unprimeable number, because it can be changed into a prime (2008157617) 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, 623209 + ... + 626422.

It is an arithmetic number, because the mean of its divisors is an integer number (502352064).

Almost surely, 2^2008157017 is an apocalyptic number.

It is an amenable number.

2008157017 is a deficient number, since it is larger than the sum of its proper divisors (1251239).

2008157017 is a wasteful number, since it uses less digits than its factorization.

2008157017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251238.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 2008157017 is about 44812.4649734870. The cubic root of 2008157017 is about 1261.6315927475.

The spelling of 2008157017 in words is "two billion, eight million, one hundred fifty-seven thousand, seventeen".