2139599807 has 2 divisors, whose sum is σ = 2139599808. Its totient is φ = 2139599806.

The previous prime is 2139599797. The next prime is 2139599831. The reversal of 2139599807 is 7089959312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2139599807 - 2³⁰ = 1065857983 is a prime.

It is a super-2 number, since 2×2139599807² = 9155774668228874498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2139599867) 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 as a sum of consecutive naturals, namely, 1069799903 + 1069799904.

It is an arithmetic number, because the mean of its divisors is an integer number (1069799904).

Almost surely, 2^2139599807 is an apocalyptic number.

2139599807 is a deficient number, since it is larger than the sum of its proper divisors (1).

2139599807 is an equidigital number, since it uses as much as digits as its factorization.

2139599807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 2139599807 is about 46255.8083595996. The cubic root of 2139599807 is about 1288.5784085299.

The spelling of 2139599807 in words is "two billion, one hundred thirty-nine million, five hundred ninety-nine thousand, eight hundred seven".