128746503 has 40 divisors (see below), whose sum is σ = 200290816. Its totient is φ = 82668600.

The previous prime is 128746477. The next prime is 128746507. The reversal of 128746503 is 305647821.

It is not a de Polignac number, because 128746503 - 2⁶ = 128746439 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 (128746507) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 610068 + ... + 610278.

Almost surely, 2^128746503 is an apocalyptic number.

128746503 is a deficient number, since it is larger than the sum of its proper divisors (71544313).

128746503 is an frugal number, since it uses more digits than its factorization.

128746503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 128746503 is about 11346.6516206324. The cubic root of 128746503 is about 504.9462452994.

The spelling of 128746503 in words is "one hundred twenty-eight million, seven hundred forty-six thousand, five hundred three".