2112293765 has 4 divisors (see below), whose sum is σ = 2534752524. Its totient is φ = 1689835008.

The previous prime is 2112293761. The next prime is 2112293789. The reversal of 2112293765 is 5673922112.

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 385808164 + 1726485601 = 19642^2 + 41551^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112293765 - 2² = 2112293761 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112293761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211229372 + ... + 211229381.

It is an arithmetic number, because the mean of its divisors is an integer number (633688131).

Almost surely, 2^2112293765 is an apocalyptic number.

It is an amenable number.

2112293765 is a deficient number, since it is larger than the sum of its proper divisors (422458759).

2112293765 is an equidigital number, since it uses as much as digits as its factorization.

2112293765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422458758.

The product of its digits is 45360, while the sum is 38.

The square root of 2112293765 is about 45959.6971813349. The cubic root of 2112293765 is about 1283.0732154351.

The spelling of 2112293765 in words is "two billion, one hundred twelve million, two hundred ninety-three thousand, seven hundred sixty-five".