2158239583 has 12 divisors (see below), whose sum is σ = 2287844040. Its totient is φ = 2035641456.

The previous prime is 2158239557. The next prime is 2158239673. The reversal of 2158239583 is 3859328512.

It is a de Polignac number, because none of the positive numbers 2^k-2158239583 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 (2158239533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69616 + ... + 95722.

It is an arithmetic number, because the mean of its divisors is an integer number (190653670).

Almost surely, 2^2158239583 is an apocalyptic number.

2158239583 is a deficient number, since it is larger than the sum of its proper divisors (129604457).

2158239583 is a wasteful number, since it uses less digits than its factorization.

2158239583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26374 (or 26355 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The square root of 2158239583 is about 46456.8572225888. The cubic root of 2158239583 is about 1292.3095423264.

The spelling of 2158239583 in words is "two billion, one hundred fifty-eight million, two hundred thirty-nine thousand, five hundred eighty-three".