1125798156 has 96 divisors (see below), whose sum is σ = 3341184000. Its totient is φ = 321128064.

The previous prime is 1125798151. The next prime is 1125798197. The reversal of 1125798156 is 6518975211.

It is not an unprimeable number, because it can be changed into a prime (1125798151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 852865 + ... + 854183.

It is an arithmetic number, because the mean of its divisors is an integer number (34804000).

Almost surely, 2^1125798156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125798156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1670592000).

1125798156 is an abundant number, since it is smaller than the sum of its proper divisors (2215385844).

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

1125798156 is a wasteful number, since it uses less digits than its factorization.

1125798156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468 (or 2460 counting only the distinct ones).

The product of its digits is 151200, while the sum is 45.

The square root of 1125798156 is about 33552.9157600349. The cubic root of 1125798156 is about 1040.2878135866.

The spelling of 1125798156 in words is "one billion, one hundred twenty-five million, seven hundred ninety-eight thousand, one hundred fifty-six".