159287517349 has 4 divisors (see below), whose sum is σ = 159375474720. Its totient is φ = 159199559980.

The previous prime is 159287517293. The next prime is 159287517383. The reversal of 159287517349 is 943715782951.

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 159287517349 - 2¹⁷ = 159287386277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159287514349) 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, 43975969 + ... + 43979590.

It is an arithmetic number, because the mean of its divisors is an integer number (39843868680).

Almost surely, 2^159287517349 is an apocalyptic number.

It is an amenable number.

159287517349 is a deficient number, since it is larger than the sum of its proper divisors (87957371).

159287517349 is an equidigital number, since it uses as much as digits as its factorization.

159287517349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87957370.

The product of its digits is 19051200, while the sum is 61.

The spelling of 159287517349 in words is "one hundred fifty-nine billion, two hundred eighty-seven million, five hundred seventeen thousand, three hundred forty-nine".