144540553 has 8 divisors (see below), whose sum is σ = 150670080. Its totient is φ = 138487440.

The previous prime is 144540551. The next prime is 144540577. The reversal of 144540553 is 355045441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144540553 - 2¹ = 144540551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144540551) 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, 15225 + ... + 22822.

It is an arithmetic number, because the mean of its divisors is an integer number (18833760).

Almost surely, 2^144540553 is an apocalyptic number.

It is an amenable number.

144540553 is a deficient number, since it is larger than the sum of its proper divisors (6129527).

144540553 is a wasteful number, since it uses less digits than its factorization.

144540553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38207.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 144540553 is about 12022.5019442710. The cubic root of 144540553 is about 524.8033161959.

Adding to 144540553 its reverse (355045441), we get a palindrome (499585994).

The spelling of 144540553 in words is "one hundred forty-four million, five hundred forty thousand, five hundred fifty-three".