190128611 has 16 divisors (see below), whose sum is σ = 213734400. Its totient is φ = 168285600.

The previous prime is 190128599. The next prime is 190128613. The reversal of 190128611 is 116821091.

190128611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 190128611 - 2²⁶ = 123019747 is a prime.

It is a super-2 number, since 2×190128611² = 72297777441578642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190128613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11516 + ... + 22646.

It is an arithmetic number, because the mean of its divisors is an integer number (13358400).

Almost surely, 2^190128611 is an apocalyptic number.

190128611 is the 6167-th centered decagonal number.

190128611 is a deficient number, since it is larger than the sum of its proper divisors (23605789).

190128611 is a wasteful number, since it uses less digits than its factorization.

190128611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11210.

The product of its (nonzero) digits is 864, while the sum is 29.

The square root of 190128611 is about 13788.7131741871. The cubic root of 190128611 is about 575.0193929187.

The spelling of 190128611 in words is "one hundred ninety million, one hundred twenty-eight thousand, six hundred eleven".