972159 has 4 divisors (see below), whose sum is σ = 1296216. Its totient is φ = 648104.

The previous prime is 972137. The next prime is 972161. The reversal of 972159 is 951279.

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 972159 - 2⁷ = 972031 is a prime.

It is an Ulam number.

It is a D-number.

972159 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 972159.

It is not an unprimeable number, because it can be changed into a prime (972119) 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, 162024 + ... + 162029.

It is an arithmetic number, because the mean of its divisors is an integer number (324054).

2⁹⁷²¹⁵⁹ is an apocalyptic number.

972159 is a deficient number, since it is larger than the sum of its proper divisors (324057).

972159 is a wasteful number, since it uses less digits than its factorization.

972159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324056.

The product of its digits is 5670, while the sum is 33.

The square root of 972159 is about 985.9812371440. The cubic root of 972159 is about 99.0632184731.

The spelling of 972159 in words is "nine hundred seventy-two thousand, one hundred fifty-nine".