320672159 has 4 divisors (see below), whose sum is σ = 320924160. Its totient is φ = 320420160.

The previous prime is 320672147. The next prime is 320672171. The reversal of 320672159 is 951276023.

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

It is an interprime number because it is at equal distance from previous prime (320672147) and next prime (320672171).

It is a cyclic number.

It is not a de Polignac number, because 320672159 - 2¹² = 320668063 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 (320672119) 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, 124082 + ... + 126639.

It is an arithmetic number, because the mean of its divisors is an integer number (80231040).

Almost surely, 2^320672159 is an apocalyptic number.

320672159 is a deficient number, since it is larger than the sum of its proper divisors (252001).

320672159 is a wasteful number, since it uses less digits than its factorization.

320672159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252000.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 320672159 is about 17907.3213798156. The cubic root of 320672159 is about 684.4689502985.

The spelling of 320672159 in words is "three hundred twenty million, six hundred seventy-two thousand, one hundred fifty-nine".