128403325 has 12 divisors (see below), whose sum is σ = 159552288. Its totient is φ = 102508400.

The previous prime is 128403313. The next prime is 128403337. The reversal of 128403325 is 523304821.

It is an interprime number because it is at equal distance from previous prime (128403313) and next prime (128403337).

It is not a de Polignac number, because 128403325 - 2¹¹ = 128401277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128403293 and 128403302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7470 + ... + 17680.

It is an arithmetic number, because the mean of its divisors is an integer number (13296024).

Almost surely, 2^128403325 is an apocalyptic number.

It is an amenable number.

128403325 is a deficient number, since it is larger than the sum of its proper divisors (31148963).

128403325 is a wasteful number, since it uses less digits than its factorization.

128403325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10724 (or 10719 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 128403325 is about 11331.5190949846. The cubic root of 128403325 is about 504.4971958526.

The spelling of 128403325 in words is "one hundred twenty-eight million, four hundred three thousand, three hundred twenty-five".