1230542530 has 16 divisors (see below), whose sum is σ = 2531401920. Its totient is φ = 421900272.

The previous prime is 1230542519. The next prime is 1230542557. The reversal of 1230542530 is 352450321.

It is a junction number, because it is equal to n+sod(n) for n = 1230542495 and 1230542504.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8789520 + ... + 8789659.

It is an arithmetic number, because the mean of its divisors is an integer number (158212620).

Almost surely, 2^1230542530 is an apocalyptic number.

1230542530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230542530 is an abundant number, since it is smaller than the sum of its proper divisors (1300859390).

1230542530 is a wasteful number, since it uses less digits than its factorization.

1230542530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17579193.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1230542530 is about 35079.0896404111. The cubic root of 1230542530 is about 1071.5987774381.

Adding to 1230542530 its reverse (352450321), we get a palindrome (1582992851).

The spelling of 1230542530 in words is "one billion, two hundred thirty million, five hundred forty-two thousand, five hundred thirty".