120643478 has 8 divisors (see below), whose sum is σ = 181272168. Its totient is φ = 60219424.

The previous prime is 120643477. The next prime is 120643499. The reversal of 120643478 is 874346021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120643477) 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, 49676 + ... + 52047.

It is an arithmetic number, because the mean of its divisors is an integer number (22659021).

Almost surely, 2^120643478 is an apocalyptic number.

120643478 is a deficient number, since it is larger than the sum of its proper divisors (60628690).

120643478 is a wasteful number, since it uses less digits than its factorization.

120643478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102318.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 120643478 is about 10983.7824996674. The cubic root of 120643478 is about 494.1224843392.

Adding to 120643478 its reverse (874346021), we get a palindrome (994989499).

It can be divided in two parts, 120643 and 478, that added together give a palindrome (121121).

The spelling of 120643478 in words is "one hundred twenty million, six hundred forty-three thousand, four hundred seventy-eight".