2139576514 has 16 divisors (see below), whose sum is σ = 3399700248. Its totient is φ = 1006400512.

The previous prime is 2139576511. The next prime is 2139576521. The reversal of 2139576514 is 4156759312.

It can be written as a sum of positive squares in 4 ways, for example, as 1500245289 + 639331225 = 38733^2 + 25285^2 .

It is not an unprimeable number, because it can be changed into a prime (2139576511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68214 + ... + 94510.

Almost surely, 2^2139576514 is an apocalyptic number.

2139576514 is a deficient number, since it is larger than the sum of its proper divisors (1260123734).

2139576514 is a wasteful number, since it uses less digits than its factorization.

2139576514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28709.

The product of its digits is 226800, while the sum is 43.

The square root of 2139576514 is about 46255.5565743187. The cubic root of 2139576514 is about 1288.5737324271.

The spelling of 2139576514 in words is "two billion, one hundred thirty-nine million, five hundred seventy-six thousand, five hundred fourteen".