190215189 has 8 divisors (see below), whose sum is σ = 281800320. Its totient is φ = 126810108.

The previous prime is 190215143. The next prime is 190215199. The reversal of 190215189 is 981512091.

190215189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 190215189 - 2¹¹ = 190213141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190215119) 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, 3522477 + ... + 3522530.

It is an arithmetic number, because the mean of its divisors is an integer number (35225040).

Almost surely, 2^190215189 is an apocalyptic number.

It is an amenable number.

190215189 is a deficient number, since it is larger than the sum of its proper divisors (91585131).

190215189 is an equidigital number, since it uses as much as digits as its factorization.

190215189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7045016 (or 7045010 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

The square root of 190215189 is about 13791.8522686404. The cubic root of 190215189 is about 575.1066609948.

The spelling of 190215189 in words is "one hundred ninety million, two hundred fifteen thousand, one hundred eighty-nine".