120643500 has 48 divisors (see below), whose sum is σ = 351318240. Its totient is φ = 32171200.

The previous prime is 120643499. The next prime is 120643513. The reversal of 120643500 is 5346021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38715 + ... + 41714.

It is an arithmetic number, because the mean of its divisors is an integer number (7319130).

Almost surely, 2^120643500 is an apocalyptic number.

120643500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120643500 is an abundant number, since it is smaller than the sum of its proper divisors (230674740).

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

120643500 is a wasteful number, since it uses less digits than its factorization.

120643500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80451 (or 80439 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 120643500 is about 10983.7835011439. The cubic root of 120643500 is about 494.1225143745.

Adding to 120643500 its reverse (5346021), we get a palindrome (125989521).

The spelling of 120643500 in words is "one hundred twenty million, six hundred forty-three thousand, five hundred".