128026078 has 4 divisors (see below), whose sum is σ = 192039120. Its totient is φ = 64013038.

The previous prime is 128026069. The next prime is 128026081. The reversal of 128026078 is 870620821.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32006518 + ... + 32006521.

It is an arithmetic number, because the mean of its divisors is an integer number (48009780).

Almost surely, 2^128026078 is an apocalyptic number.

128026078 is a deficient number, since it is larger than the sum of its proper divisors (64013042).

128026078 is an equidigital number, since it uses as much as digits as its factorization.

128026078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64013041.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 128026078 is about 11314.8609359550. The cubic root of 128026078 is about 504.0026428643.

Adding to 128026078 its reverse (870620821), we get a palindrome (998646899).

The spelling of 128026078 in words is "one hundred twenty-eight million, twenty-six thousand, seventy-eight".