190705265 has 4 divisors (see below), whose sum is σ = 228846324. Its totient is φ = 152564208.

The previous prime is 190705253. The next prime is 190705283. The reversal of 190705265 is 562507091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562507091 = 11353 ⋅49547.

It can be written as a sum of positive squares in 2 ways, for example, as 47831056 + 142874209 = 6916^2 + 11953^2 .

It is a cyclic number.

It is not a de Polignac number, because 190705265 - 2²⁴ = 173928049 is a prime.

It is a Duffinian 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, 19070522 + ... + 19070531.

It is an arithmetic number, because the mean of its divisors is an integer number (57211581).

Almost surely, 2^190705265 is an apocalyptic number.

It is an amenable number.

190705265 is a deficient number, since it is larger than the sum of its proper divisors (38141059).

190705265 is an equidigital number, since it uses as much as digits as its factorization.

190705265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38141058.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 190705265 is about 13809.6077062312. The cubic root of 190705265 is about 575.6001446597.

The spelling of 190705265 in words is "one hundred ninety million, seven hundred five thousand, two hundred sixty-five".