128254064 has 20 divisors (see below), whose sum is σ = 253182456. Its totient is φ = 62916672.

The previous prime is 128254033. The next prime is 128254067. The reversal of 128254064 is 460452821.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 128254064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128254067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74774 + ... + 76469.

Almost surely, 2^128254064 is an apocalyptic number.

It is an amenable number.

128254064 is a deficient number, since it is larger than the sum of its proper divisors (124928392).

128254064 is a wasteful number, since it uses less digits than its factorization.

128254064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151304 (or 151298 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 128254064 is about 11324.9310814680. The cubic root of 128254064 is about 504.3016376958.

The spelling of 128254064 in words is "one hundred twenty-eight million, two hundred fifty-four thousand, sixty-four".