128810 has 16 divisors (see below), whose sum is σ = 253152. Its totient is φ = 46800.

The previous prime is 128767. The next prime is 128813. The reversal of 128810 is 18821.

It is a super-2 number, since 2×128810² = 33184032200, which contains 22 as substring.

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 128810.

It is not an unprimeable number, because it can be changed into a prime (128813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476 + ... + 695.

It is an arithmetic number, because the mean of its divisors is an integer number (15822).

2¹²⁸⁸¹⁰ is an apocalyptic number.

128810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128810 is a deficient number, since it is larger than the sum of its proper divisors (124342).

128810 is a wasteful number, since it uses less digits than its factorization.

128810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 128810 is about 358.9011005834. The cubic root of 128810 is about 50.5029243805.

The spelling of 128810 in words is "one hundred twenty-eight thousand, eight hundred ten".