128536562 has 16 divisors (see below), whose sum is σ = 240380352. Its totient is φ = 50079120.

The previous prime is 128536553. The next prime is 128536621. The reversal of 128536562 is 265635821.

It is a pancake number, because a pancake can be divided into 128536562 parts by 16033 straight cuts.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417173 + ... + 417480.

It is an arithmetic number, because the mean of its divisors is an integer number (15023772).

Almost surely, 2^128536562 is an apocalyptic number.

128536562 is a deficient number, since it is larger than the sum of its proper divisors (111843790).

128536562 is a wasteful number, since it uses less digits than its factorization.

128536562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834673.

The product of its digits is 86400, while the sum is 38.

The square root of 128536562 is about 11337.3966147436. The cubic root of 128536562 is about 504.6716317740.

The spelling of 128536562 in words is "one hundred twenty-eight million, five hundred thirty-six thousand, five hundred sixty-two".