7920159 has 16 divisors (see below), whose sum is σ = 11741184. Its totient is φ = 4716000.

The previous prime is 7920149. The next prime is 7920163. The reversal of 7920159 is 9510297.

7920159 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7920159 - 2⁹ = 7919647 is a prime.

7920159 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7920139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2067 + ... + 4484.

It is an arithmetic number, because the mean of its divisors is an integer number (733824).

Almost surely, 2^7920159 is an apocalyptic number.

7920159 is a deficient number, since it is larger than the sum of its proper divisors (3821025).

7920159 is a wasteful number, since it uses less digits than its factorization.

7920159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6598.

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

The square root of 7920159 is about 2814.2777048472. The cubic root of 7920159 is about 199.3324325812.

The spelling of 7920159 in words is "seven million, nine hundred twenty thousand, one hundred fifty-nine".