2133257377 has 2 divisors, whose sum is σ = 2133257378. Its totient is φ = 2133257376.

The previous prime is 2133257297. The next prime is 2133257389. The reversal of 2133257377 is 7737523312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1787260176 + 345997201 = 42276^2 + 18601^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133257377 - 2¹⁹ = 2132733089 is a prime.

It is not a weakly prime, because it can be changed into another prime (2133257177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066628688 + 1066628689.

It is an arithmetic number, because the mean of its divisors is an integer number (1066628689).

Almost surely, 2^2133257377 is an apocalyptic number.

It is an amenable number.

2133257377 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133257377 is an equidigital number, since it uses as much as digits as its factorization.

2133257377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185220, while the sum is 40.

The square root of 2133257377 is about 46187.1992764229. The cubic root of 2133257377 is about 1287.3039011609.

The spelling of 2133257377 in words is "two billion, one hundred thirty-three million, two hundred fifty-seven thousand, three hundred seventy-seven".