120144136 has 32 divisors (see below), whose sum is σ = 261679680. Its totient is φ = 50644800.

The previous prime is 120144131. The next prime is 120144139. The reversal of 120144136 is 631441021.

It is a super-2 number, since 2×120144136² = 28869226830372992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120144131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14170 + ... + 21001.

It is an arithmetic number, because the mean of its divisors is an integer number (8177490).

Almost surely, 2^120144136 is an apocalyptic number.

It is an amenable number.

120144136 is an abundant number, since it is smaller than the sum of its proper divisors (141535544).

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

120144136 is a wasteful number, since it uses less digits than its factorization.

120144136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35245 (or 35241 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 120144136 is about 10961.0280539738. The cubic root of 120144136 is about 493.4398191529.

Adding to 120144136 its reverse (631441021), we get a palindrome (751585157).

The spelling of 120144136 in words is "one hundred twenty million, one hundred forty-four thousand, one hundred thirty-six".