191495065 has 8 divisors (see below), whose sum is σ = 230222088. Its totient is φ = 152910720.

The previous prime is 191495047. The next prime is 191495077. The reversal of 191495065 is 560594191.

It can be written as a sum of positive squares in 4 ways, for example, as 309136 + 191185929 = 556^2 + 13827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 191495065 - 2⁷ = 191494937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32692 + ... + 38101.

It is an arithmetic number, because the mean of its divisors is an integer number (28777761).

Almost surely, 2^191495065 is an apocalyptic number.

It is an amenable number.

191495065 is a deficient number, since it is larger than the sum of its proper divisors (38727023).

191495065 is an equidigital number, since it uses as much as digits as its factorization.

191495065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71339.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 191495065 is about 13838.1741931513. The cubic root of 191495065 is about 576.3936603346.

The spelling of 191495065 in words is "one hundred ninety-one million, four hundred ninety-five thousand, sixty-five".