1230565600 has 72 divisors (see below), whose sum is σ = 3277243368. Its totient is φ = 447475200.

The previous prime is 1230565579. The next prime is 1230565603. The reversal of 1230565600 is 65650321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230565603) 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 11 ways as a sum of consecutive naturals, for example, 61119 + ... + 78718.

It is an arithmetic number, because the mean of its divisors is an integer number (45517269).

Almost surely, 2^1230565600 is an apocalyptic number.

1230565600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230565600 is an abundant number, since it is smaller than the sum of its proper divisors (2046677768).

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

1230565600 is a wasteful number, since it uses less digits than its factorization.

1230565600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139868 (or 139855 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1230565600 is about 35079.4184672437. The cubic root of 1230565600 is about 1071.6054741129.

The spelling of 1230565600 in words is "one billion, two hundred thirty million, five hundred sixty-five thousand, six hundred".