159438659 has 4 divisors (see below), whose sum is σ = 160655880. Its totient is φ = 158221440.

The previous prime is 159438649. The next prime is 159438677. The reversal of 159438659 is 956834951.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 956834951 = 6047 ⋅158233.

It is a cyclic number.

It is not a de Polignac number, because 159438659 - 2⁸ = 159438403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159438649) 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, 608414 + ... + 608675.

It is an arithmetic number, because the mean of its divisors is an integer number (40163970).

Almost surely, 2^159438659 is an apocalyptic number.

159438659 is a deficient number, since it is larger than the sum of its proper divisors (1217221).

159438659 is a wasteful number, since it uses less digits than its factorization.

159438659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217220.

The product of its digits is 1166400, while the sum is 50.

The square root of 159438659 is about 12626.9021933331. The cubic root of 159438659 is about 542.2478986091.

The spelling of 159438659 in words is "one hundred fifty-nine million, four hundred thirty-eight thousand, six hundred fifty-nine".