128003275 has 6 divisors (see below), whose sum is σ = 158724092. Its totient is φ = 102402600.

The previous prime is 128003263. The next prime is 128003339. The reversal of 128003275 is 572300821.

It is a de Polignac number, because none of the positive numbers 2^k-128003275 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2560041 + ... + 2560090.

Almost surely, 2^128003275 is an apocalyptic number.

128003275 is a deficient number, since it is larger than the sum of its proper divisors (30720817).

128003275 is an equidigital number, since it uses as much as digits as its factorization.

128003275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5120141 (or 5120136 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 128003275 is about 11313.8532339782. The cubic root of 128003275 is about 503.9727180895.

The spelling of 128003275 in words is "one hundred twenty-eight million, three thousand, two hundred seventy-five".