1225224189 has 24 divisors (see below), whose sum is σ = 2050306752. Its totient is φ = 690534720.

The previous prime is 1225224181. The next prime is 1225224199. The reversal of 1225224189 is 9814225221.

1225224189 is a `hidden beast` number, since 12 + 2 + 522 + 41 + 89 = 666.

It is not a de Polignac number, because 1225224189 - 2³ = 1225224181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225224181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128607 + ... + 137804.

It is an arithmetic number, because the mean of its divisors is an integer number (85429448).

Almost surely, 2^1225224189 is an apocalyptic number.

It is an amenable number.

1225224189 is a deficient number, since it is larger than the sum of its proper divisors (825082563).

1225224189 is a wasteful number, since it uses less digits than its factorization.

1225224189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266497 (or 266494 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 1225224189 is about 35003.2025534807. The cubic root of 1225224189 is about 1070.0527498960.

The spelling of 1225224189 in words is "one billion, two hundred twenty-five million, two hundred twenty-four thousand, one hundred eighty-nine".