1125989622 has 24 divisors (see below), whose sum is σ = 2491553376. Its totient is φ = 367343856.

The previous prime is 1125989621. The next prime is 1125989653. The reversal of 1125989622 is 2269895211.

It is a happy number.

1125989622 is a `hidden beast` number, since 1 + 12 + 5 + 9 + 8 + 9 + 622 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125989621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 664633 + ... + 666324.

It is an arithmetic number, because the mean of its divisors is an integer number (103814724).

Almost surely, 2^1125989622 is an apocalyptic number.

1125989622 is an abundant number, since it is smaller than the sum of its proper divisors (1365563754).

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

1125989622 is a wasteful number, since it uses less digits than its factorization.

1125989622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331012 (or 1331009 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 1125989622 is about 33555.7688333914. The cubic root of 1125989622 is about 1040.3467846241.

The spelling of 1125989622 in words is "one billion, one hundred twenty-five million, nine hundred eighty-nine thousand, six hundred twenty-two".