2149317017 has 4 divisors (see below), whose sum is σ = 2218649856. Its totient is φ = 2079984180.

The previous prime is 2149317011. The next prime is 2149317019. The reversal of 2149317017 is 7107139412.

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 2149317017 - 2²⁶ = 2082208153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2149317011) 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, 34666373 + ... + 34666434.

It is an arithmetic number, because the mean of its divisors is an integer number (554662464).

Almost surely, 2^2149317017 is an apocalyptic number.

It is an amenable number.

2149317017 is a deficient number, since it is larger than the sum of its proper divisors (69332839).

2149317017 is an equidigital number, since it uses as much as digits as its factorization.

2149317017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69332838.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 2149317017 is about 46360.7270974043. The cubic root of 2149317017 is about 1290.5261994083.

The spelling of 2149317017 in words is "two billion, one hundred forty-nine million, three hundred seventeen thousand, seventeen".