159870557 has 16 divisors (see below), whose sum is σ = 199997952. Its totient is φ = 124150320.

The previous prime is 159870553. The next prime is 159870559. The reversal of 159870557 is 755078951.

It is a happy number.

It is not a de Polignac number, because 159870557 - 2² = 159870553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159870553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20258 + ... + 27020.

It is an arithmetic number, because the mean of its divisors is an integer number (12499872).

Almost surely, 2^159870557 is an apocalyptic number.

It is an amenable number.

159870557 is a deficient number, since it is larger than the sum of its proper divisors (40127395).

159870557 is a wasteful number, since it uses less digits than its factorization.

159870557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7088.

The product of its (nonzero) digits is 441000, while the sum is 47.

The square root of 159870557 is about 12643.9929215418. The cubic root of 159870557 is about 542.7370828377.

The spelling of 159870557 in words is "one hundred fifty-nine million, eight hundred seventy thousand, five hundred fifty-seven".