123530730 has 16 divisors (see below), whose sum is σ = 296473824. Its totient is φ = 32941520.

The previous prime is 123530713. The next prime is 123530767. The reversal of 123530730 is 37035321.

It is a self number, because there is not a number n which added to its sum of digits gives 123530730.

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, 2058816 + ... + 2058875.

It is an arithmetic number, because the mean of its divisors is an integer number (18529614).

Almost surely, 2^123530730 is an apocalyptic number.

123530730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123530730 is an abundant number, since it is smaller than the sum of its proper divisors (172943094).

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

123530730 is a wasteful number, since it uses less digits than its factorization.

123530730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4117701.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 123530730 is about 11114.4379075147. The cubic root of 123530730 is about 498.0332472440.

The spelling of 123530730 in words is "one hundred twenty-three million, five hundred thirty thousand, seven hundred thirty".