144134540 has 24 divisors (see below), whose sum is σ = 330199632. Its totient is φ = 52412480.

The previous prime is 144134539. The next prime is 144134567. The reversal of 144134540 is 45431441.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327359 + ... + 327798.

It is an arithmetic number, because the mean of its divisors is an integer number (13758318).

Almost surely, 2^144134540 is an apocalyptic number.

144134540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144134540 is an abundant number, since it is smaller than the sum of its proper divisors (186065092).

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

144134540 is a wasteful number, since it uses less digits than its factorization.

144134540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655177 (or 655175 counting only the distinct ones).

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

The square root of 144134540 is about 12005.6045245544. The cubic root of 144134540 is about 524.3114662463.

Adding to 144134540 its reverse (45431441), we get a palindrome (189565981).

The spelling of 144134540 in words is "one hundred forty-four million, one hundred thirty-four thousand, five hundred forty".