190436065 has 4 divisors (see below), whose sum is σ = 228523284. Its totient is φ = 152348848.

The previous prime is 190436063. The next prime is 190436089. The reversal of 190436065 is 560634091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560634091 = 67 ⋅8367673.

It can be written as a sum of positive squares in 2 ways, for example, as 111154849 + 79281216 = 10543^2 + 8904^2 .

It is a cyclic number.

It is not a de Polignac number, because 190436065 - 2¹ = 190436063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 190436065.

It is not an unprimeable number, because it can be changed into a prime (190436063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19043602 + ... + 19043611.

It is an arithmetic number, because the mean of its divisors is an integer number (57130821).

Almost surely, 2^190436065 is an apocalyptic number.

It is an amenable number.

190436065 is a deficient number, since it is larger than the sum of its proper divisors (38087219).

190436065 is an equidigital number, since it uses as much as digits as its factorization.

190436065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38087218.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 190436065 is about 13799.8574267997. The cubic root of 190436065 is about 575.3291776151.

The spelling of 190436065 in words is "one hundred ninety million, four hundred thirty-six thousand, sixty-five".