120663530 has 32 divisors (see below), whose sum is σ = 236552400. Its totient is φ = 44047872.

The previous prime is 120663511. The next prime is 120663539. The reversal of 120663530 is 35366021.

It can be written as a sum of positive squares in 8 ways, for example, as 49716601 + 70946929 = 7051^2 + 8423^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 120663530.

It is not an unprimeable number, because it can be changed into a prime (120663539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6356 + ... + 16784.

Almost surely, 2^120663530 is an apocalyptic number.

120663530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120663530 is a deficient number, since it is larger than the sum of its proper divisors (115888870).

120663530 is a wasteful number, since it uses less digits than its factorization.

120663530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10538.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 120663530 is about 10984.6952620453. The cubic root of 120663530 is about 494.1498586472.

The spelling of 120663530 in words is "one hundred twenty million, six hundred sixty-three thousand, five hundred thirty".