120144242 has 4 divisors (see below), whose sum is σ = 180216366. Its totient is φ = 60072120.

The previous prime is 120144221. The next prime is 120144257. The reversal of 120144242 is 242441021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242441021 = 6679 ⋅36299.

It can be written as a sum of positive squares in only one way, i.e., 119224561 + 919681 = 10919^2 + 959^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30036059 + ... + 30036062.

Almost surely, 2^120144242 is an apocalyptic number.

120144242 is a deficient number, since it is larger than the sum of its proper divisors (60072124).

120144242 is an equidigital number, since it uses as much as digits as its factorization.

120144242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60072123.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 120144242 is about 10961.0328892856. The cubic root of 120144242 is about 493.4399642691.

Adding to 120144242 its reverse (242441021), we get a palindrome (362585263).

The spelling of 120144242 in words is "one hundred twenty million, one hundred forty-four thousand, two hundred forty-two".