2139838135 has 4 divisors (see below), whose sum is σ = 2567805768. Its totient is φ = 1711870504.

The previous prime is 2139838087. The next prime is 2139838153. The reversal of 2139838135 is 5318389312.

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

It is a cyclic number.

It is not a de Polignac number, because 2139838135 - 2¹³ = 2139829943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2139838091 and 2139838100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213983809 + ... + 213983818.

It is an arithmetic number, because the mean of its divisors is an integer number (641951442).

Almost surely, 2^2139838135 is an apocalyptic number.

2139838135 is a deficient number, since it is larger than the sum of its proper divisors (427967633).

2139838135 is an equidigital number, since it uses as much as digits as its factorization.

2139838135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427967632.

The product of its digits is 155520, while the sum is 43.

The square root of 2139838135 is about 46258.3844832480. The cubic root of 2139838135 is about 1288.6262512638.

The spelling of 2139838135 in words is "two billion, one hundred thirty-nine million, eight hundred thirty-eight thousand, one hundred thirty-five".