2194920265 has 4 divisors (see below), whose sum is σ = 2633904324. Its totient is φ = 1755936208.

The previous prime is 2194920241. The next prime is 2194920271. The reversal of 2194920265 is 5620294912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 919787584 + 1275132681 = 30328^2 + 35709^2 .

It is a cyclic number.

It is not a de Polignac number, because 2194920265 - 2⁷ = 2194920137 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, 219492022 + ... + 219492031.

It is an arithmetic number, because the mean of its divisors is an integer number (658476081).

Almost surely, 2^2194920265 is an apocalyptic number.

It is an amenable number.

2194920265 is a deficient number, since it is larger than the sum of its proper divisors (438984059).

2194920265 is an equidigital number, since it uses as much as digits as its factorization.

2194920265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438984058.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 2194920265 is about 46849.9761472725. The cubic root of 2194920265 is about 1299.5896663534.

The spelling of 2194920265 in words is "two billion, one hundred ninety-four million, nine hundred twenty thousand, two hundred sixty-five".