159874978 has 8 divisors (see below), whose sum is σ = 250239168. Its totient is φ = 76461924.

The previous prime is 159874973. The next prime is 159874997. The reversal of 159874978 is 879478951.

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

It is not an unprimeable number, because it can be changed into a prime (159874973) 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, 1737726 + ... + 1737817.

It is an arithmetic number, because the mean of its divisors is an integer number (31279896).

Almost surely, 2^159874978 is an apocalyptic number.

159874978 is a deficient number, since it is larger than the sum of its proper divisors (90364190).

159874978 is a wasteful number, since it uses less digits than its factorization.

159874978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475568.

The product of its digits is 5080320, while the sum is 58.

The square root of 159874978 is about 12644.1677464355. The cubic root of 159874978 is about 542.7420856737.

The spelling of 159874978 in words is "one hundred fifty-nine million, eight hundred seventy-four thousand, nine hundred seventy-eight".