3123745000 has 120 divisors (see below), whose sum is σ = 7657462890. Its totient is φ = 1194160000.

The previous prime is 3123744937. The next prime is 3123745007. The reversal of 3123745000 is 5473213.

It can be written as a sum of positive squares in 5 ways, for example, as 378613764 + 2745131236 = 19458^2 + 52394^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (3123745007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2644410 + ... + 2645590.

Almost surely, 2^3123745000 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 3123745000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3828731445).

3123745000 is an abundant number, since it is smaller than the sum of its proper divisors (4533717890).

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

3123745000 is a wasteful number, since it uses less digits than its factorization.

3123745000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 3123745000 is about 55890.4732490252. The cubic root of 3123745000 is about 1461.8131286470.

The spelling of 3123745000 in words is "three billion, one hundred twenty-three million, seven hundred forty-five thousand".