2136431771 has 2 divisors, whose sum is σ = 2136431772. Its totient is φ = 2136431770.

The previous prime is 2136431753. The next prime is 2136431779. The reversal of 2136431771 is 1771346312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2136431771 - 2¹⁸ = 2136169627 is a prime.

It is not a weakly prime, because it can be changed into another prime (2136431779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068215885 + 1068215886.

It is an arithmetic number, because the mean of its divisors is an integer number (1068215886).

Almost surely, 2^2136431771 is an apocalyptic number.

2136431771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136431771 is an equidigital number, since it uses as much as digits as its factorization.

2136431771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 2136431771 is about 46221.5509367654. The cubic root of 2136431771 is about 1287.9421089662.

It can be divided in two parts, 21364 and 31771, that added together give a palindrome (53135).

The spelling of 2136431771 in words is "two billion, one hundred thirty-six million, four hundred thirty-one thousand, seven hundred seventy-one".