191946065 has 16 divisors (see below), whose sum is σ = 244363392. Its totient is φ = 144240384.

The previous prime is 191946061. The next prime is 191946107. The reversal of 191946065 is 560649191.

It is a cyclic number.

It is not a de Polignac number, because 191946065 - 2² = 191946061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (191946061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47972 + ... + 51818.

It is an arithmetic number, because the mean of its divisors is an integer number (15272712).

Almost surely, 2^191946065 is an apocalyptic number.

It is an amenable number.

191946065 is a deficient number, since it is larger than the sum of its proper divisors (52417327).

191946065 is a wasteful number, since it uses less digits than its factorization.

191946065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4456.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 191946065 is about 13854.4601121805. The cubic root of 191946065 is about 576.8458038066.

The spelling of 191946065 in words is "one hundred ninety-one million, nine hundred forty-six thousand, sixty-five".