2091195047 has 8 divisors (see below), whose sum is σ = 2104091520. Its totient is φ = 2078327160.

The previous prime is 2091195031. The next prime is 2091195079. The reversal of 2091195047 is 7405911902.

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

It is a cyclic number.

It is not a de Polignac number, because 2091195047 - 2⁴ = 2091195031 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 2091195047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091195097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150104 + ... + 163442.

It is an arithmetic number, because the mean of its divisors is an integer number (263011440).

Almost surely, 2^2091195047 is an apocalyptic number.

2091195047 is a deficient number, since it is larger than the sum of its proper divisors (12896473).

2091195047 is a wasteful number, since it uses less digits than its factorization.

2091195047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14293.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 2091195047 is about 45729.5861232091. The cubic root of 2091195047 is about 1278.7869054866.

The spelling of 2091195047 in words is "two billion, ninety-one million, one hundred ninety-five thousand, forty-seven".