128168572 has 12 divisors (see below), whose sum is σ = 256337200. Its totient is φ = 54929376.

The previous prime is 128168567. The next prime is 128168587. The reversal of 128168572 is 275861821.

128168572 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2288697 + ... + 2288752.

Almost surely, 2^128168572 is an apocalyptic number.

It is an amenable number.

128168572 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128168572 is a wasteful number, since it uses less digits than its factorization.

128168572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577460 (or 4577458 counting only the distinct ones).

The product of its digits is 53760, while the sum is 40.

The square root of 128168572 is about 11321.1559480470. The cubic root of 128168572 is about 504.1895597949.

The spelling of 128168572 in words is "one hundred twenty-eight million, one hundred sixty-eight thousand, five hundred seventy-two".