120630643 has 4 divisors (see below), whose sum is σ = 137863600. Its totient is φ = 103397688.

The previous prime is 120630637. The next prime is 120630647. The reversal of 120630643 is 346036021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120630643 - 2⁹ = 120630131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120630647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8616468 + ... + 8616481.

It is an arithmetic number, because the mean of its divisors is an integer number (34465900).

Almost surely, 2^120630643 is an apocalyptic number.

120630643 is a deficient number, since it is larger than the sum of its proper divisors (17232957).

120630643 is an equidigital number, since it uses as much as digits as its factorization.

120630643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17232956.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 120630643 is about 10983.1982136352. The cubic root of 120630643 is about 494.1049608418.

Adding to 120630643 its reverse (346036021), we get a palindrome (466666664).

The spelling of 120630643 in words is "one hundred twenty million, six hundred thirty thousand, six hundred forty-three".