1125223242 has 32 divisors (see below), whose sum is σ = 2643883200. Its totient is φ = 314747520.

The previous prime is 1125223237. The next prime is 1125223249. The reversal of 1125223242 is 2423225211.

It is a super-2 number, since 2×1125223242² = 2532254688673981128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1125223249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654867 + ... + 656582.

It is an arithmetic number, because the mean of its divisors is an integer number (82621350).

Almost surely, 2^1125223242 is an apocalyptic number.

1125223242 is an abundant number, since it is smaller than the sum of its proper divisors (1518659958).

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

1125223242 is a wasteful number, since it uses less digits than its factorization.

1125223242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311478.

The product of its digits is 1920, while the sum is 24.

The square root of 1125223242 is about 33544.3473926681. The cubic root of 1125223242 is about 1040.1107013572.

Adding to 1125223242 its reverse (2423225211), we get a palindrome (3548448453).

The spelling of 1125223242 in words is "one billion, one hundred twenty-five million, two hundred twenty-three thousand, two hundred forty-two".