120144132 has 36 divisors (see below), whose sum is σ = 308236656. Its totient is φ = 39449520.

The previous prime is 120144131. The next prime is 120144139. The reversal of 120144132 is 231441021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×120144132² = 28869224908066848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 22494 + ... + 27317.

Almost surely, 2^120144132 is an apocalyptic number.

120144132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120144132 is an abundant number, since it is smaller than the sum of its proper divisors (188092524).

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

120144132 is a wasteful number, since it uses less digits than its factorization.

120144132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49888 (or 49883 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 120144132 is about 10961.0278715091. The cubic root of 120144132 is about 493.4398136768.

Adding to 120144132 its reverse (231441021), we get a palindrome (351585153).

The spelling of 120144132 in words is "one hundred twenty million, one hundred forty-four thousand, one hundred thirty-two".