159898563 has 32 divisors (see below), whose sum is σ = 259660800. Its totient is φ = 96444000.

The previous prime is 159898517. The next prime is 159898567. The reversal of 159898563 is 365898951.

It is a happy number.

It is not a de Polignac number, because 159898563 - 2¹⁰ = 159897539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159898567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66838 + ... + 69188.

It is an arithmetic number, because the mean of its divisors is an integer number (8114400).

Almost surely, 2^159898563 is an apocalyptic number.

159898563 is a deficient number, since it is larger than the sum of its proper divisors (99762237).

159898563 is a wasteful number, since it uses less digits than its factorization.

159898563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600 (or 2594 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 54.

The square root of 159898563 is about 12645.1003554737. The cubic root of 159898563 is about 542.7687730742.

It can be divided in two parts, 159898 and 563, that added together give a triangular number (160461 = T₅₆₆).

The spelling of 159898563 in words is "one hundred fifty-nine million, eight hundred ninety-eight thousand, five hundred sixty-three".