128868174 has 12 divisors (see below), whose sum is σ = 279214416. Its totient is φ = 42956052.

The previous prime is 128868107. The next prime is 128868191. The reversal of 128868174 is 471868821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3579654 + ... + 3579689.

It is an arithmetic number, because the mean of its divisors is an integer number (23267868).

Almost surely, 2^128868174 is an apocalyptic number.

128868174 is an abundant number, since it is smaller than the sum of its proper divisors (150346242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128868174 is a wasteful number, since it uses less digits than its factorization.

128868174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7159351 (or 7159348 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 128868174 is about 11352.0118921714. The cubic root of 128868174 is about 505.1052605470.

The spelling of 128868174 in words is "one hundred twenty-eight million, eight hundred sixty-eight thousand, one hundred seventy-four".