912125820 has 96 divisors (see below), whose sum is σ = 2713773888. Its totient is φ = 228114432.

The previous prime is 912125801. The next prime is 912125827. The reversal of 912125820 is 28521219.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (912125827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 317832 + ... + 320688.

It is an arithmetic number, because the mean of its divisors is an integer number (28268478).

Almost surely, 2^912125820 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 912125820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1356886944).

912125820 is an abundant number, since it is smaller than the sum of its proper divisors (1801648068).

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

912125820 is a wasteful number, since it uses less digits than its factorization.

912125820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199 (or 3197 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 912125820 is about 30201.4208275041. The cubic root of 912125820 is about 969.8061113871.

The spelling of 912125820 in words is "nine hundred twelve million, one hundred twenty-five thousand, eight hundred twenty".