72026159 has 4 divisors (see below), whose sum is σ = 72171000. Its totient is φ = 71881320.

The previous prime is 72026147. The next prime is 72026167. The reversal of 72026159 is 95162027.

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

It is a cyclic number.

It is not a de Polignac number, because 72026159 - 2²⁰ = 70977583 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 (72026659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71672 + ... + 72669.

It is an arithmetic number, because the mean of its divisors is an integer number (18042750).

Almost surely, 2^72026159 is an apocalyptic number.

72026159 is a deficient number, since it is larger than the sum of its proper divisors (144841).

72026159 is a wasteful number, since it uses less digits than its factorization.

72026159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144840.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 72026159 is about 8486.8226681132. The cubic root of 72026159 is about 416.0671408366.

The spelling of 72026159 in words is "seventy-two million, twenty-six thousand, one hundred fifty-nine".