128756083 has 2 divisors, whose sum is σ = 128756084. Its totient is φ = 128756082.

The previous prime is 128756071. The next prime is 128756087. The reversal of 128756083 is 380657821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128756083 is a prime.

It is not a weakly prime, because it can be changed into another prime (128756087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64378041 + 64378042.

It is an arithmetic number, because the mean of its divisors is an integer number (64378042).

Almost surely, 2^128756083 is an apocalyptic number.

128756083 is a deficient number, since it is larger than the sum of its proper divisors (1).

128756083 is an equidigital number, since it uses as much as digits as its factorization.

128756083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 128756083 is about 11347.0737637507. The cubic root of 128756083 is about 504.9587693032.

The spelling of 128756083 in words is "one hundred twenty-eight million, seven hundred fifty-six thousand, eighty-three".