128832163 has 4 divisors (see below), whose sum is σ = 129047128. Its totient is φ = 128617200.

The previous prime is 128832161. The next prime is 128832167. The reversal of 128832163 is 361238821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128832163 - 2¹ = 128832161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128832161) 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, 106581 + ... + 107782.

It is an arithmetic number, because the mean of its divisors is an integer number (32261782).

Almost surely, 2^128832163 is an apocalyptic number.

128832163 is a deficient number, since it is larger than the sum of its proper divisors (214965).

128832163 is an equidigital number, since it uses as much as digits as its factorization.

128832163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214964.

The product of its digits is 13824, while the sum is 34.

The square root of 128832163 is about 11350.4256748370. The cubic root of 128832163 is about 505.0582071913.

The spelling of 128832163 in words is "one hundred twenty-eight million, eight hundred thirty-two thousand, one hundred sixty-three".