1230000725 has 24 divisors (see below), whose sum is σ = 1561635912. Its totient is φ = 960768000.

The previous prime is 1230000721. The next prime is 1230000727. The reversal of 1230000725 is 5270000321.

1230000725 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 287879089 + 942121636 = 16967^2 + 30694^2 .

It is not a de Polignac number, because 1230000725 - 2² = 1230000721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230000697 and 1230000706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230000721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180989 + ... + 187661.

It is an arithmetic number, because the mean of its divisors is an integer number (65068163).

Almost surely, 2^1230000725 is an apocalyptic number.

It is an amenable number.

1230000725 is a deficient number, since it is larger than the sum of its proper divisors (331635187).

1230000725 is a wasteful number, since it uses less digits than its factorization.

1230000725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6857 (or 6852 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 1230000725 is about 35071.3661695692. The cubic root of 1230000725 is about 1071.4414802043.

The spelling of 1230000725 in words is "one billion, two hundred thirty million, seven hundred twenty-five", and thus it is an aban number.