128565152 has 24 divisors (see below), whose sum is σ = 268002756. Its totient is φ = 60500992.

The previous prime is 128565137. The next prime is 128565181. The reversal of 128565152 is 251565821.

It can be written as a sum of positive squares in 2 ways, for example, as 123565456 + 4999696 = 11116^2 + 2236^2 .

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, 117623 + ... + 118710.

Almost surely, 2^128565152 is an apocalyptic number.

It is an amenable number.

128565152 is an abundant number, since it is smaller than the sum of its proper divisors (139437604).

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

128565152 is a wasteful number, since it uses less digits than its factorization.

128565152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236360 (or 236352 counting only the distinct ones).

The product of its digits is 24000, while the sum is 35.

The square root of 128565152 is about 11338.6574161141. The cubic root of 128565152 is about 504.7090465300.

The spelling of 128565152 in words is "one hundred twenty-eight million, five hundred sixty-five thousand, one hundred fifty-two".