2139229769 has 8 divisors (see below), whose sum is σ = 2196824448. Its totient is φ = 2082138480.

The previous prime is 2139229751. The next prime is 2139229789. The reversal of 2139229769 is 9679229312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2139229769 - 2²⁰ = 2138181193 is a prime.

It is a super-2 number, since 2×2139229769² = 9152608009151586722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2139229709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117227 + ... + 134240.

It is an arithmetic number, because the mean of its divisors is an integer number (274603056).

Almost surely, 2^2139229769 is an apocalyptic number.

It is an amenable number.

2139229769 is a deficient number, since it is larger than the sum of its proper divisors (57594679).

2139229769 is a wasteful number, since it uses less digits than its factorization.

2139229769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251695.

The product of its digits is 734832, while the sum is 50.

The square root of 2139229769 is about 46251.8082781636. The cubic root of 2139229769 is about 1288.5041188634.

The spelling of 2139229769 in words is "two billion, one hundred thirty-nine million, two hundred twenty-nine thousand, seven hundred sixty-nine".