190606565 has 4 divisors (see below), whose sum is σ = 228727884. Its totient is φ = 152485248.

The previous prime is 190606541. The next prime is 190606571. The reversal of 190606565 is 565606091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 565606091 = 61 ⋅9272231.

It can be written as a sum of positive squares in 2 ways, for example, as 30052324 + 160554241 = 5482^2 + 12671^2 .

It is a cyclic number.

It is not a de Polignac number, because 190606565 - 2⁶ = 190606501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19060652 + ... + 19060661.

It is an arithmetic number, because the mean of its divisors is an integer number (57181971).

Almost surely, 2^190606565 is an apocalyptic number.

It is an amenable number.

190606565 is a deficient number, since it is larger than the sum of its proper divisors (38121319).

190606565 is an equidigital number, since it uses as much as digits as its factorization.

190606565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38121318.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 190606565 is about 13806.0336447511. The cubic root of 190606565 is about 575.5008264122.

The spelling of 190606565 in words is "one hundred ninety million, six hundred six thousand, five hundred sixty-five".