128190319 has 8 divisors (see below), whose sum is σ = 135874800. Its totient is φ = 120521856.

The previous prime is 128190299. The next prime is 128190331. The reversal of 128190319 is 913091821.

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

It is a cyclic number.

It is not a de Polignac number, because 128190319 - 2⁹ = 128189807 is a prime.

It is a super-2 number, since 2×128190319² = 32865515770643522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128190379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15132 + ... + 22030.

It is an arithmetic number, because the mean of its divisors is an integer number (16984350).

Almost surely, 2^128190319 is an apocalyptic number.

128190319 is a deficient number, since it is larger than the sum of its proper divisors (7684481).

128190319 is a wasteful number, since it uses less digits than its factorization.

128190319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8009.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 128190319 is about 11322.1163657684. The cubic root of 128190319 is about 504.2180743002.

The spelling of 128190319 in words is "one hundred twenty-eight million, one hundred ninety thousand, three hundred nineteen".