128472144 has 40 divisors (see below), whose sum is σ = 332335872. Its totient is φ = 42766080.

The previous prime is 128472143. The next prime is 128472163. The reversal of 128472144 is 441274821.

It is a super-3 number, since 3×128472144³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128472143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48289 + ... + 50879.

Almost surely, 2^128472144 is an apocalyptic number.

It is an amenable number.

128472144 is an abundant number, since it is smaller than the sum of its proper divisors (203863728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128472144 is a wasteful number, since it uses less digits than its factorization.

128472144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635 (or 3629 counting only the distinct ones).

The product of its digits is 14336, while the sum is 33.

The square root of 128472144 is about 11334.5553066717. Note that the first 3 decimals coincide. The cubic root of 128472144 is about 504.5873098007.

The spelling of 128472144 in words is "one hundred twenty-eight million, four hundred seventy-two thousand, one hundred forty-four".