159864749 has 8 divisors (see below), whose sum is σ = 174663648. Its totient is φ = 145110160.

The previous prime is 159864739. The next prime is 159864751. The reversal of 159864749 is 947468951.

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 159864749 - 2⁸ = 159864493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 159864749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159864739) 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, 3287 + ... + 18180.

It is an arithmetic number, because the mean of its divisors is an integer number (21832956).

Almost surely, 2^159864749 is an apocalyptic number.

It is an amenable number.

159864749 is a deficient number, since it is larger than the sum of its proper divisors (14798899).

159864749 is a wasteful number, since it uses less digits than its factorization.

159864749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22155.

The product of its digits is 2177280, while the sum is 53.

The square root of 159864749 is about 12643.7632451735. The cubic root of 159864749 is about 542.7305103222.

The spelling of 159864749 in words is "one hundred fifty-nine million, eight hundred sixty-four thousand, seven hundred forty-nine".