1125117792 has 36 divisors (see below), whose sum is σ = 3199554540. Its totient is φ = 375039168.

The previous prime is 1125117781. The next prime is 1125117821. The reversal of 1125117792 is 2977115211.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1953042 + ... + 1953617.

It is an arithmetic number, because the mean of its divisors is an integer number (88876515).

Almost surely, 2^1125117792 is an apocalyptic number.

1125117792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1125117792 is an abundant number, since it is smaller than the sum of its proper divisors (2074436748).

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

1125117792 is a wasteful number, since it uses less digits than its factorization.

1125117792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906675 (or 3906664 counting only the distinct ones).

The product of its digits is 8820, while the sum is 36.

The square root of 1125117792 is about 33542.7755559972. The cubic root of 1125117792 is about 1040.0782091086.

The spelling of 1125117792 in words is "one billion, one hundred twenty-five million, one hundred seventeen thousand, seven hundred ninety-two".