128250194 has 8 divisors (see below), whose sum is σ = 195246768. Its totient is φ = 63167940.

The previous prime is 128250137. The next prime is 128250217. The reversal of 128250194 is 491052821.

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

It is a super-2 number, since 2×128250194² = 32896224522075272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128250194.

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, 478412 + ... + 478679.

It is an arithmetic number, because the mean of its divisors is an integer number (24405846).

Almost surely, 2^128250194 is an apocalyptic number.

128250194 is a deficient number, since it is larger than the sum of its proper divisors (66996574).

128250194 is an equidigital number, since it uses as much as digits as its factorization.

128250194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957160.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 128250194 is about 11324.7602182121. The cubic root of 128250194 is about 504.2965652978.

The spelling of 128250194 in words is "one hundred twenty-eight million, two hundred fifty thousand, one hundred ninety-four".