159870735 has 48 divisors (see below), whose sum is σ = 285068160. Its totient is φ = 82844160.

The previous prime is 159870721. The next prime is 159870743. The reversal of 159870735 is 537078951.

It is a Cunningham number, because it is equal to 12644²-1.

It is not a de Polignac number, because 159870735 - 2⁴ = 159870719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 568795 + ... + 569075.

It is an arithmetic number, because the mean of its divisors is an integer number (5938920).

Almost surely, 2^159870735 is an apocalyptic number.

159870735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

159870735 is a deficient number, since it is larger than the sum of its proper divisors (125197425).

159870735 is a wasteful number, since it uses less digits than its factorization.

159870735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The square root of 159870735 is about 12643.9999604556. Note that the first 4 decimals coincide. The cubic root of 159870735 is about 542.7372842656.

The spelling of 159870735 in words is "one hundred fifty-nine million, eight hundred seventy thousand, seven hundred thirty-five".