2245108771 has 4 divisors (see below), whose sum is σ = 2247283192. Its totient is φ = 2242934352.

The previous prime is 2245108751. The next prime is 2245108787. The reversal of 2245108771 is 1778015422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1778015422 = 2 ⋅889007711.

It is a cyclic number.

It is not a de Polignac number, because 2245108771 - 2⁹ = 2245108259 is a prime.

It is a super-2 number, since 2×2245108771² = 10081026787242260882, which contains 22 as substring.

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 2245108771.

It is not an unprimeable number, because it can be changed into a prime (2245108751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085661 + ... + 1087726.

It is an arithmetic number, because the mean of its divisors is an integer number (561820798).

Almost surely, 2^2245108771 is an apocalyptic number.

2245108771 is a deficient number, since it is larger than the sum of its proper divisors (2174421).

2245108771 is a wasteful number, since it uses less digits than its factorization.

2245108771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174420.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 2245108771 is about 47382.5787711053. The cubic root of 2245108771 is about 1309.4204788619.

The spelling of 2245108771 in words is "two billion, two hundred forty-five million, one hundred eight thousand, seven hundred seventy-one".