2139070899 has 16 divisors (see below), whose sum is σ = 3347633408. Its totient is φ = 1189289952.

The previous prime is 2139070891. The next prime is 2139070931. The reversal of 2139070899 is 9980709312.

It is not a de Polignac number, because 2139070899 - 2³ = 2139070891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2139070891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375717 + ... + 1377270.

It is an arithmetic number, because the mean of its divisors is an integer number (209227088).

Almost surely, 2^2139070899 is an apocalyptic number.

2139070899 is a deficient number, since it is larger than the sum of its proper divisors (1208562509).

2139070899 is a wasteful number, since it uses less digits than its factorization.

2139070899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753034.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 2139070899 is about 46250.0907999109. The cubic root of 2139070899 is about 1288.4722211340.

The spelling of 2139070899 in words is "two billion, one hundred thirty-nine million, seventy thousand, eight hundred ninety-nine".