2731251139 has 2 divisors, whose sum is σ = 2731251140. Its totient is φ = 2731251138.

The previous prime is 2731251113. The next prime is 2731251157. The reversal of 2731251139 is 9311521372.

2731251139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2731251139 - 2⁷ = 2731251011 is a prime.

It is not a weakly prime, because it can be changed into another prime (2731251179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365625569 + 1365625570.

It is an arithmetic number, because the mean of its divisors is an integer number (1365625570).

Almost surely, 2^2731251139 is an apocalyptic number.

2731251139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731251139 is an equidigital number, since it uses as much as digits as its factorization.

2731251139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 34.

The square root of 2731251139 is about 52261.3732980679. The cubic root of 2731251139 is about 1397.8284598258.

The spelling of 2731251139 in words is "two billion, seven hundred thirty-one million, two hundred fifty-one thousand, one hundred thirty-nine".