1230525072 has 120 divisors (see below), whose sum is σ = 3947336640. Its totient is φ = 350542080.

The previous prime is 1230525031. The next prime is 1230525073. The reversal of 1230525072 is 2705250321.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1230525073) 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 23 ways as a sum of consecutive naturals, for example, 380422 + ... + 383642.

It is an arithmetic number, because the mean of its divisors is an integer number (32894472).

Almost surely, 2^1230525072 is an apocalyptic number.

1230525072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230525072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1973668320).

1230525072 is an abundant number, since it is smaller than the sum of its proper divisors (2716811568).

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

1230525072 is a wasteful number, since it uses less digits than its factorization.

1230525072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621 (or 3612 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 1230525072 is about 35078.8408018281. The cubic root of 1230525072 is about 1071.5937097385.

Adding to 1230525072 its reverse (2705250321), we get a palindrome (3935775393).

The spelling of 1230525072 in words is "one billion, two hundred thirty million, five hundred twenty-five thousand, seventy-two".