128901583 has 2 divisors, whose sum is σ = 128901584. Its totient is φ = 128901582.

The previous prime is 128901569. The next prime is 128901587. The reversal of 128901583 is 385109821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128901583 - 2⁵ = 128901551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128901587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64450791 + 64450792.

It is an arithmetic number, because the mean of its divisors is an integer number (64450792).

Almost surely, 2^128901583 is an apocalyptic number.

128901583 is a deficient number, since it is larger than the sum of its proper divisors (1).

128901583 is an equidigital number, since it uses as much as digits as its factorization.

128901583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 128901583 is about 11353.4832980896. The cubic root of 128901583 is about 505.1489061916.

The spelling of 128901583 in words is "one hundred twenty-eight million, nine hundred one thousand, five hundred eighty-three".