144540135 has 24 divisors (see below), whose sum is σ = 258620544. Its totient is φ = 74600640.

The previous prime is 144540133. The next prime is 144540161. The reversal of 144540135 is 531045441.

It is a happy number.

144540135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144540135 - 2¹ = 144540133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144540099 and 144540108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144540131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50412 + ... + 53201.

It is an arithmetic number, because the mean of its divisors is an integer number (10775856).

Almost surely, 2^144540135 is an apocalyptic number.

144540135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144540135 is a deficient number, since it is larger than the sum of its proper divisors (114080409).

144540135 is a wasteful number, since it uses less digits than its factorization.

144540135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103655 (or 103652 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 144540135 is about 12022.4845601897. The cubic root of 144540135 is about 524.8028102987.

Adding to 144540135 its reverse (531045441), we get a palindrome (675585576).

The spelling of 144540135 in words is "one hundred forty-four million, five hundred forty thousand, one hundred thirty-five".