2139733727 has 4 divisors (see below), whose sum is σ = 2140001736. Its totient is φ = 2139465720.

The previous prime is 2139733693. The next prime is 2139733741. The reversal of 2139733727 is 7273379312.

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 2139733727 - 2¹⁶ = 2139668191 is a prime.

It is a super-2 number, since 2×2139733727² = 9156920844922621058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139733777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121649 + ... + 138122.

It is an arithmetic number, because the mean of its divisors is an integer number (535000434).

Almost surely, 2^2139733727 is an apocalyptic number.

2139733727 is a deficient number, since it is larger than the sum of its proper divisors (268009).

2139733727 is an equidigital number, since it uses as much as digits as its factorization.

2139733727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268008.

The product of its digits is 333396, while the sum is 44.

The square root of 2139733727 is about 46257.2559389335. The cubic root of 2139733727 is about 1288.6052925013.

The spelling of 2139733727 in words is "two billion, one hundred thirty-nine million, seven hundred thirty-three thousand, seven hundred twenty-seven".