128753903 has 4 divisors (see below), whose sum is σ = 136327680. Its totient is φ = 121180128.

The previous prime is 128753887. The next prime is 128753909. The reversal of 128753903 is 309357821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 309357821 = 2411 ⋅128311.

It is a cyclic number.

It is not a de Polignac number, because 128753903 - 2⁴ = 128753887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128753909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3786863 + ... + 3786896.

It is an arithmetic number, because the mean of its divisors is an integer number (34081920).

Almost surely, 2^128753903 is an apocalyptic number.

128753903 is a deficient number, since it is larger than the sum of its proper divisors (7573777).

128753903 is an equidigital number, since it uses as much as digits as its factorization.

128753903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7573776.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 128753903 is about 11346.9777033358. The cubic root of 128753903 is about 504.9559194279.

The spelling of 128753903 in words is "one hundred twenty-eight million, seven hundred fifty-three thousand, nine hundred three".