123530530 has 16 divisors (see below), whose sum is σ = 222528384. Its totient is φ = 49373680.

The previous prime is 123530521. The next prime is 123530543. The reversal of 123530530 is 35035321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11175 + ... + 19285.

It is an arithmetic number, because the mean of its divisors is an integer number (13908024).

Almost surely, 2^123530530 is an apocalyptic number.

123530530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123530530 is a deficient number, since it is larger than the sum of its proper divisors (98997854).

123530530 is a wasteful number, since it uses less digits than its factorization.

123530530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9641.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 123530530 is about 11114.4289102050. The cubic root of 123530530 is about 498.0329784669.

Adding to 123530530 its reverse (35035321), we get a palindrome (158565851).

The spelling of 123530530 in words is "one hundred twenty-three million, five hundred thirty thousand, five hundred thirty".