1092212865 has 12 divisors (see below), whose sum is σ = 1893169044. Its totient is φ = 582513504.

The previous prime is 1092212851. The next prime is 1092212867. The reversal of 1092212865 is 5682122901.

It can be written as a sum of positive squares in 2 ways, for example, as 647804304 + 444408561 = 25452^2 + 21081^2 .

It is not a de Polignac number, because 1092212865 - 2¹² = 1092208769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1092212867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12135654 + ... + 12135743.

It is an arithmetic number, because the mean of its divisors is an integer number (157764087).

Almost surely, 2^1092212865 is an apocalyptic number.

1092212865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1092212865 is a deficient number, since it is larger than the sum of its proper divisors (800956179).

1092212865 is a wasteful number, since it uses less digits than its factorization.

1092212865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24271408 (or 24271405 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1092212865 is about 33048.6439207420. The cubic root of 1092212865 is about 1029.8384341422.

The spelling of 1092212865 in words is "one billion, ninety-two million, two hundred twelve thousand, eight hundred sixty-five".