128022533 has 2 divisors, whose sum is σ = 128022534. Its totient is φ = 128022532.

The previous prime is 128022523. The next prime is 128022539. The reversal of 128022533 is 335220821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108951844 + 19070689 = 10438^2 + 4367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128022533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128022539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64011266 + 64011267.

It is an arithmetic number, because the mean of its divisors is an integer number (64011267).

Almost surely, 2^128022533 is an apocalyptic number.

It is an amenable number.

128022533 is a deficient number, since it is larger than the sum of its proper divisors (1).

128022533 is an equidigital number, since it uses as much as digits as its factorization.

128022533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 128022533 is about 11314.7042824813. The cubic root of 128022533 is about 503.9979909322.

The spelling of 128022533 in words is "one hundred twenty-eight million, twenty-two thousand, five hundred thirty-three".