2742870139 has 2 divisors, whose sum is σ = 2742870140. Its totient is φ = 2742870138.

The previous prime is 2742870127. The next prime is 2742870161. The reversal of 2742870139 is 9310782472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2742870139 - 2⁵ = 2742870107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2742870095 and 2742870104.

It is not a weakly prime, because it can be changed into another prime (2742870839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1371435069 + 1371435070.

It is an arithmetic number, because the mean of its divisors is an integer number (1371435070).

Almost surely, 2^2742870139 is an apocalyptic number.

2742870139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2742870139 is an equidigital number, since it uses as much as digits as its factorization.

2742870139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 2742870139 is about 52372.4177310920. The cubic root of 2742870139 is about 1399.8078203892.

The spelling of 2742870139 in words is "two billion, seven hundred forty-two million, eight hundred seventy thousand, one hundred thirty-nine".