135044144 has 10 divisors (see below), whose sum is σ = 261648060. Its totient is φ = 67522064.

The previous prime is 135044131. The next prime is 135044197. The reversal of 135044144 is 441440531.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4220114 + ... + 4220145.

It is an arithmetic number, because the mean of its divisors is an integer number (26164806).

Almost surely, 2^135044144 is an apocalyptic number.

It is an amenable number.

135044144 is a deficient number, since it is larger than the sum of its proper divisors (126603916).

135044144 is an equidigital number, since it uses as much as digits as its factorization.

135044144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8440267 (or 8440261 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 135044144 is about 11620.8495386525. The cubic root of 135044144 is about 513.0486928563.

Adding to 135044144 its reverse (441440531), we get a palindrome (576484675).

The spelling of 135044144 in words is "one hundred thirty-five million, forty-four thousand, one hundred forty-four".