1125161224 has 32 divisors (see below), whose sum is σ = 2316153600. Its totient is φ = 508173120.

The previous prime is 1125161159. The next prime is 1125161239. The reversal of 1125161224 is 4221615211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26904 + ... + 54535.

It is an arithmetic number, because the mean of its divisors is an integer number (72379800).

Almost surely, 2^1125161224 is an apocalyptic number.

It is an amenable number.

1125161224 is an abundant number, since it is smaller than the sum of its proper divisors (1190992376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125161224 is a wasteful number, since it uses less digits than its factorization.

1125161224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81613 (or 81609 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 1125161224 is about 33543.4229618863. The cubic root of 1125161224 is about 1040.0915920319.

Adding to 1125161224 its reverse (4221615211), we get a palindrome (5346776435).

The spelling of 1125161224 in words is "one billion, one hundred twenty-five million, one hundred sixty-one thousand, two hundred twenty-four".