128070855 has 32 divisors (see below), whose sum is σ = 248382720. Its totient is φ = 62094240.

The previous prime is 128070841. The next prime is 128070869. The reversal of 128070855 is 558070821.

It is an interprime number because it is at equal distance from previous prime (128070841) and next prime (128070869).

It is not a de Polignac number, because 128070855 - 2⁶ = 128070791 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41637 + ... + 44606.

It is an arithmetic number, because the mean of its divisors is an integer number (7761960).

Almost surely, 2^128070855 is an apocalyptic number.

128070855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128070855 is a deficient number, since it is larger than the sum of its proper divisors (120311865).

128070855 is a wasteful number, since it uses less digits than its factorization.

128070855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86268 (or 86262 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 128070855 is about 11316.8394439437. The cubic root of 128070855 is about 504.0613941650.

The spelling of 128070855 in words is "one hundred twenty-eight million, seventy thousand, eight hundred fifty-five".