159884797 has 4 divisors (see below), whose sum is σ = 161351740. Its totient is φ = 158417856.

The previous prime is 159884783. The next prime is 159884873. The reversal of 159884797 is 797488951.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139688761 + 20196036 = 11819^2 + 4494^2 .

It is a cyclic number.

It is not a de Polignac number, because 159884797 - 2²⁷ = 25667069 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 (159884497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 733308 + ... + 733525.

It is an arithmetic number, because the mean of its divisors is an integer number (40337935).

Almost surely, 2^159884797 is an apocalyptic number.

It is an amenable number.

159884797 is a deficient number, since it is larger than the sum of its proper divisors (1466943).

159884797 is a wasteful number, since it uses less digits than its factorization.

159884797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466942.

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

The square root of 159884797 is about 12644.5560222572. The cubic root of 159884797 is about 542.7531965961.

The spelling of 159884797 in words is "one hundred fifty-nine million, eight hundred eighty-four thousand, seven hundred ninety-seven".