190205012 has 12 divisors (see below), whose sum is σ = 341855220. Its totient is φ = 92532096.

The previous prime is 190205011. The next prime is 190205033. The reversal of 190205012 is 210502091.

It can be written as a sum of positive squares in 2 ways, for example, as 67305616 + 122899396 = 8204^2 + 11086^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190205011) 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 3 ways as a sum of consecutive naturals, for example, 642437 + ... + 642732.

It is an arithmetic number, because the mean of its divisors is an integer number (28487935).

Almost surely, 2^190205012 is an apocalyptic number.

It is an amenable number.

190205012 is a deficient number, since it is larger than the sum of its proper divisors (151650208).

190205012 is a wasteful number, since it uses less digits than its factorization.

190205012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285210 (or 1285208 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 190205012 is about 13791.4833139877. The cubic root of 190205012 is about 575.0964042519.

The spelling of 190205012 in words is "one hundred ninety million, two hundred five thousand, twelve".