2164159238 has 4 divisors (see below), whose sum is σ = 3246238860. Its totient is φ = 1082079618.

The previous prime is 2164159201. The next prime is 2164159273. The reversal of 2164159238 is 8329514612.

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

It is a junction number, because it is equal to n+sod(n) for n = 2164159195 and 2164159204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541039808 + ... + 541039811.

It is an arithmetic number, because the mean of its divisors is an integer number (811559715).

Almost surely, 2^2164159238 is an apocalyptic number.

2164159238 is a deficient number, since it is larger than the sum of its proper divisors (1082079622).

2164159238 is a wasteful number, since it uses less digits than its factorization.

2164159238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082079621.

The product of its digits is 103680, while the sum is 41.

The square root of 2164159238 is about 46520.5249110540. The cubic root of 2164159238 is about 1293.4899863537.

The spelling of 2164159238 in words is "two billion, one hundred sixty-four million, one hundred fifty-nine thousand, two hundred thirty-eight".