2133171457 has 2 divisors, whose sum is σ = 2133171458. Its totient is φ = 2133171456.

The previous prime is 2133171433. The next prime is 2133171487. The reversal of 2133171457 is 7541713312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1592887921 + 540283536 = 39911^2 + 23244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2133171457 is a prime.

It is not a weakly prime, because it can be changed into another prime (2133171427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066585728 + 1066585729.

It is an arithmetic number, because the mean of its divisors is an integer number (1066585729).

Almost surely, 2^2133171457 is an apocalyptic number.

It is an amenable number.

2133171457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133171457 is an equidigital number, since it uses as much as digits as its factorization.

2133171457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 34.

The square root of 2133171457 is about 46186.2691392150. The cubic root of 2133171457 is about 1287.2866182586.

Adding to 2133171457 its reverse (7541713312), we get a palindrome (9674884769).

The spelling of 2133171457 in words is "two billion, one hundred thirty-three million, one hundred seventy-one thousand, four hundred fifty-seven".