128850503 has 2 divisors, whose sum is σ = 128850504. Its totient is φ = 128850502.

The previous prime is 128850499. The next prime is 128850529. The reversal of 128850503 is 305058821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128850503 - 2² = 128850499 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128850503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128850563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64425251 + 64425252.

It is an arithmetic number, because the mean of its divisors is an integer number (64425252).

Almost surely, 2^128850503 is an apocalyptic number.

128850503 is a deficient number, since it is larger than the sum of its proper divisors (1).

128850503 is an equidigital number, since it uses as much as digits as its factorization.

128850503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 128850503 is about 11351.2335453025. The cubic root of 128850503 is about 505.0821720352.

The spelling of 128850503 in words is "one hundred twenty-eight million, eight hundred fifty thousand, five hundred three".