159613887 has 8 divisors (see below), whose sum is σ = 212888880. Its totient is φ = 106374080.

The previous prime is 159613879. The next prime is 159613903. The reversal of 159613887 is 788316951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 159613887 - 2³ = 159613879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159611887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4789 + ... + 18497.

It is an arithmetic number, because the mean of its divisors is an integer number (26611110).

Almost surely, 2^159613887 is an apocalyptic number.

159613887 is a deficient number, since it is larger than the sum of its proper divisors (53274993).

159613887 is a wasteful number, since it uses less digits than its factorization.

159613887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17593.

The product of its digits is 362880, while the sum is 48.

The square root of 159613887 is about 12633.8389652552. The cubic root of 159613887 is about 542.4464749304.

The spelling of 159613887 in words is "one hundred fifty-nine million, six hundred thirteen thousand, eight hundred eighty-seven".