128692033 has 2 divisors, whose sum is σ = 128692034. Its totient is φ = 128692032.

The previous prime is 128692013. The next prime is 128692051. The reversal of 128692033 is 330296821.

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., 128323584 + 368449 = 11328^2 + 607^2 .

It is an emirp because it is prime and its reverse (330296821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128692033 - 2⁵ = 128692001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128692033.

It is not a weakly prime, because it can be changed into another prime (128692013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64346016 + 64346017.

It is an arithmetic number, because the mean of its divisors is an integer number (64346017).

Almost surely, 2^128692033 is an apocalyptic number.

It is an amenable number.

128692033 is a deficient number, since it is larger than the sum of its proper divisors (1).

128692033 is an equidigital number, since it uses as much as digits as its factorization.

128692033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 128692033 is about 11344.2510991251. The cubic root of 128692033 is about 504.8750244608.

The spelling of 128692033 in words is "one hundred twenty-eight million, six hundred ninety-two thousand, thirty-three".