2159071958 has 4 divisors (see below), whose sum is σ = 3238607940. Its totient is φ = 1079535978.

The previous prime is 2159071921. The next prime is 2159071963. The reversal of 2159071958 is 8591709512.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539767988 + ... + 539767991.

It is an arithmetic number, because the mean of its divisors is an integer number (809651985).

Almost surely, 2^2159071958 is an apocalyptic number.

2159071958 is a deficient number, since it is larger than the sum of its proper divisors (1079535982).

2159071958 is a wasteful number, since it uses less digits than its factorization.

2159071958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079535981.

The product of its (nonzero) digits is 226800, while the sum is 47.

The square root of 2159071958 is about 46465.8149395876. The cubic root of 2159071958 is about 1292.4756573252.

The spelling of 2159071958 in words is "two billion, one hundred fifty-nine million, seventy-one thousand, nine hundred fifty-eight".