128472093 has 12 divisors (see below), whose sum is σ = 186989088. Its totient is φ = 84993480.

The previous prime is 128472067. The next prime is 128472133. The reversal of 128472093 is 390274821.

It is not a de Polignac number, because 128472093 - 2¹⁴ = 128455709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128472293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53305 + ... + 55662.

It is an arithmetic number, because the mean of its divisors is an integer number (15582424).

Almost surely, 2^128472093 is an apocalyptic number.

It is an amenable number.

128472093 is a deficient number, since it is larger than the sum of its proper divisors (58516995).

128472093 is a wasteful number, since it uses less digits than its factorization.

128472093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109104 (or 109101 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 128472093 is about 11334.5530569141. The cubic root of 128472093 is about 504.5872430315.

The spelling of 128472093 in words is "one hundred twenty-eight million, four hundred seventy-two thousand, ninety-three".