128424503 has 8 divisors (see below), whose sum is σ = 130419072. Its totient is φ = 126444856.

The previous prime is 128424493. The next prime is 128424523. The reversal of 128424503 is 305424821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128424503 - 2¹⁰ = 128423479 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 (128424523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14276 + ... + 21462.

It is an arithmetic number, because the mean of its divisors is an integer number (16302384).

Almost surely, 2^128424503 is an apocalyptic number.

128424503 is a deficient number, since it is larger than the sum of its proper divisors (1994569).

128424503 is a wasteful number, since it uses less digits than its factorization.

128424503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7461.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 128424503 is about 11332.4535295760. The cubic root of 128424503 is about 504.5249304778.

The spelling of 128424503 in words is "one hundred twenty-eight million, four hundred twenty-four thousand, five hundred three".