128825194 has 8 divisors (see below), whose sum is σ = 198460548. Its totient is φ = 62671680.

The previous prime is 128825183. The next prime is 128825227. The reversal of 128825194 is 491528821.

It can be written as a sum of positive squares in 2 ways, for example, as 93837969 + 34987225 = 9687^2 + 5915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870367 + ... + 870514.

Almost surely, 2^128825194 is an apocalyptic number.

128825194 is a deficient number, since it is larger than the sum of its proper divisors (69635354).

128825194 is a wasteful number, since it uses less digits than its factorization.

128825194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740920.

The product of its digits is 46080, while the sum is 40.

The square root of 128825194 is about 11350.1186777936. The cubic root of 128825194 is about 505.0491002156.

The spelling of 128825194 in words is "one hundred twenty-eight million, eight hundred twenty-five thousand, one hundred ninety-four".