190128339 has 6 divisors (see below), whose sum is σ = 274629836. Its totient is φ = 126752220.

The previous prime is 190128319. The next prime is 190128347. The reversal of 190128339 is 933821091.

It is not a de Polignac number, because 190128339 - 2⁸ = 190128083 is a prime.

It is a super-2 number, since 2×190128339² = 72297570581797842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190128319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10562677 + ... + 10562694.

Almost surely, 2^190128339 is an apocalyptic number.

190128339 is a deficient number, since it is larger than the sum of its proper divisors (84501497).

190128339 is a wasteful number, since it uses less digits than its factorization.

190128339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21125377 (or 21125374 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 190128339 is about 13788.7033110442. The cubic root of 190128339 is about 575.0191187090.

The spelling of 190128339 in words is "one hundred ninety million, one hundred twenty-eight thousand, three hundred thirty-nine".