128859496 has 8 divisors (see below), whose sum is σ = 241611570. Its totient is φ = 64429744.

The previous prime is 128859469. The next prime is 128859517. The reversal of 128859496 is 694958821.

It can be written as a sum of positive squares in only one way, i.e., 114190596 + 14668900 = 10686^2 + 3830^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8053711 + ... + 8053726.

Almost surely, 2^128859496 is an apocalyptic number.

It is an amenable number.

128859496 is a deficient number, since it is larger than the sum of its proper divisors (112752074).

128859496 is a wasteful number, since it uses less digits than its factorization.

128859496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16107443 (or 16107439 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 52.

The square root of 128859496 is about 11351.6296627401. The cubic root of 128859496 is about 505.0939223406.

The spelling of 128859496 in words is "one hundred twenty-eight million, eight hundred fifty-nine thousand, four hundred ninety-six".