190842165 has 24 divisors (see below), whose sum is σ = 334210968. Its totient is φ = 100730880.

The previous prime is 190842161. The next prime is 190842191. The reversal of 190842165 is 561248091.

It can be written as a sum of positive squares in 4 ways, for example, as 27973521 + 162868644 = 5289^2 + 12762^2 .

It is not a de Polignac number, because 190842165 - 2² = 190842161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190842161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17496 + ... + 26225.

It is an arithmetic number, because the mean of its divisors is an integer number (13925457).

Almost surely, 2^190842165 is an apocalyptic number.

190842165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190842165 is a deficient number, since it is larger than the sum of its proper divisors (143368803).

190842165 is a wasteful number, since it uses less digits than its factorization.

190842165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43829 (or 43826 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 190842165 is about 13814.5635110198. The cubic root of 190842165 is about 575.7378454753.

The spelling of 190842165 in words is "one hundred ninety million, eight hundred forty-two thousand, one hundred sixty-five".