159734065 has 4 divisors (see below), whose sum is σ = 191680884. Its totient is φ = 127787248.

The previous prime is 159734053. The next prime is 159734087. The reversal of 159734065 is 560437951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560437951 = 1009 ⋅555439.

It can be written as a sum of positive squares in 2 ways, for example, as 52983841 + 106750224 = 7279^2 + 10332^2 .

It is a cyclic number.

It is not a de Polignac number, because 159734065 - 2²³ = 151345457 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15973402 + ... + 15973411.

It is an arithmetic number, because the mean of its divisors is an integer number (47920221).

Almost surely, 2^159734065 is an apocalyptic number.

It is an amenable number.

159734065 is a deficient number, since it is larger than the sum of its proper divisors (31946819).

159734065 is an equidigital number, since it uses as much as digits as its factorization.

159734065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31946818.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 159734065 is about 12638.5942651863. The cubic root of 159734065 is about 542.5825820895.

The spelling of 159734065 in words is "one hundred fifty-nine million, seven hundred thirty-four thousand, sixty-five".