2133687571 has 2 divisors, whose sum is σ = 2133687572. Its totient is φ = 2133687570.

The previous prime is 2133687553. The next prime is 2133687607. The reversal of 2133687571 is 1757863312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2133687571 - 2²³ = 2125298963 is a prime.

It is not a weakly prime, because it can be changed into another prime (2133687551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066843785 + 1066843786.

It is an arithmetic number, because the mean of its divisors is an integer number (1066843786).

Almost surely, 2^2133687571 is an apocalyptic number.

2133687571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133687571 is an equidigital number, since it uses as much as digits as its factorization.

2133687571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 2133687571 is about 46191.8561112238. The cubic root of 2133687571 is about 1287.3904281780.

The spelling of 2133687571 in words is "two billion, one hundred thirty-three million, six hundred eighty-seven thousand, five hundred seventy-one".