1230725530 has 16 divisors (see below), whose sum is σ = 2216553984. Its totient is φ = 492012880.

The previous prime is 1230725527. The next prime is 1230725537. The reversal of 1230725530 is 355270321.

It is not an unprimeable number, because it can be changed into a prime (1230725537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15526 + ... + 51985.

It is an arithmetic number, because the mean of its divisors is an integer number (138534624).

Almost surely, 2^1230725530 is an apocalyptic number.

1230725530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230725530 is a deficient number, since it is larger than the sum of its proper divisors (985828454).

1230725530 is a wasteful number, since it uses less digits than its factorization.

1230725530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69341.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 1230725530 is about 35081.6979349632. The cubic root of 1230725530 is about 1071.6518957040.

Adding to 1230725530 its reverse (355270321), we get a palindrome (1585995851).

The spelling of 1230725530 in words is "one billion, two hundred thirty million, seven hundred twenty-five thousand, five hundred thirty".