128535383 has 2 divisors, whose sum is σ = 128535384. Its totient is φ = 128535382.

The previous prime is 128535359. The next prime is 128535397. The reversal of 128535383 is 383535821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128535383 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128535683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64267691 + 64267692.

It is an arithmetic number, because the mean of its divisors is an integer number (64267692).

Almost surely, 2^128535383 is an apocalyptic number.

128535383 is a deficient number, since it is larger than the sum of its proper divisors (1).

128535383 is an equidigital number, since it uses as much as digits as its factorization.

128535383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 38.

The square root of 128535383 is about 11337.3446185604. The cubic root of 128535383 is about 504.6700887379.

The spelling of 128535383 in words is "one hundred twenty-eight million, five hundred thirty-five thousand, three hundred eighty-three".