1105123225 has 12 divisors (see below), whose sum is σ = 1403777340. Its totient is φ = 862534400.

The previous prime is 1105123223. The next prime is 1105123273. The reversal of 1105123225 is 5223215011.

It can be written as a sum of positive squares in 6 ways, for example, as 449609616 + 655513609 = 21204^2 + 25603^2 .

It is not a de Polignac number, because 1105123225 - 2¹ = 1105123223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1105123196 and 1105123205.

It is not an unprimeable number, because it can be changed into a prime (1105123223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 538060 + ... + 540109.

It is an arithmetic number, because the mean of its divisors is an integer number (116981445).

Almost surely, 2^1105123225 is an apocalyptic number.

It is an amenable number.

1105123225 is a deficient number, since it is larger than the sum of its proper divisors (298654115).

1105123225 is a wasteful number, since it uses less digits than its factorization.

1105123225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078220 (or 1078215 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1105123225 is about 33243.3937046145. The cubic root of 1105123225 is about 1033.8802408978.

Adding to 1105123225 its reverse (5223215011), we get a palindrome (6328338236).

The spelling of 1105123225 in words is "one billion, one hundred five million, one hundred twenty-three thousand, two hundred twenty-five".