2140434139 has 2 divisors, whose sum is σ = 2140434140. Its totient is φ = 2140434138.

The previous prime is 2140434103. The next prime is 2140434161. The reversal of 2140434139 is 9314340412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2140434139 - 2²¹ = 2138336987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2140434139.

It is not a weakly prime, because it can be changed into another prime (2140434239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070217069 + 1070217070.

It is an arithmetic number, because the mean of its divisors is an integer number (1070217070).

Almost surely, 2^2140434139 is an apocalyptic number.

2140434139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140434139 is an equidigital number, since it uses as much as digits as its factorization.

2140434139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2140434139 is about 46264.8261533533. The cubic root of 2140434139 is about 1288.7458794876.

The spelling of 2140434139 in words is "two billion, one hundred forty million, four hundred thirty-four thousand, one hundred thirty-nine".