128353473 has 12 divisors (see below), whose sum is σ = 186629248. Its totient is φ = 85001400.

The previous prime is 128353471. The next prime is 128353529. The reversal of 128353473 is 374353821.

It is not a de Polignac number, because 128353473 - 2¹ = 128353471 is a prime.

It is a super-2 number, since 2×128353473² = 32949228062323458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128353471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45865 + ... + 48582.

Almost surely, 2^128353473 is an apocalyptic number.

It is an amenable number.

128353473 is a deficient number, since it is larger than the sum of its proper divisors (58275775).

128353473 is a wasteful number, since it uses less digits than its factorization.

128353473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94604 (or 94601 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 128353473 is about 11329.3191763671. The cubic root of 128353473 is about 504.4318978298.

It can be divided in two parts, 1283 and 53473, that added together give a square (54756 = 234²).

The spelling of 128353473 in words is "one hundred twenty-eight million, three hundred fifty-three thousand, four hundred seventy-three".