128859023 has 16 divisors (see below), whose sum is σ = 136345440. Its totient is φ = 121651200.

The previous prime is 128859011. The next prime is 128859053. The reversal of 128859023 is 320958821.

It is a cyclic number.

It is not a de Polignac number, because 128859023 - 2¹⁸ = 128596879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128859053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167183 + ... + 167951.

It is an arithmetic number, because the mean of its divisors is an integer number (8521590).

Almost surely, 2^128859023 is an apocalyptic number.

128859023 is a deficient number, since it is larger than the sum of its proper divisors (7486417).

128859023 is an equidigital number, since it uses as much as digits as its factorization.

128859023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 128859023 is about 11351.6088287079. The cubic root of 128859023 is about 505.0933043297.

The spelling of 128859023 in words is "one hundred twenty-eight million, eight hundred fifty-nine thousand, twenty-three".