144231553 has 8 divisors (see below), whose sum is σ = 153743400. Its totient is φ = 134833920.

The previous prime is 144231541. The next prime is 144231557. The reversal of 144231553 is 355132441.

It can be written as a sum of positive squares in 4 ways, for example, as 15000129 + 129231424 = 3873^2 + 11368^2 .

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 144231553 - 2¹³ = 144223361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144231557) 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, 25938 + ... + 31003.

It is an arithmetic number, because the mean of its divisors is an integer number (19217925).

Almost surely, 2^144231553 is an apocalyptic number.

It is an amenable number.

144231553 is a deficient number, since it is larger than the sum of its proper divisors (9511847).

144231553 is a wasteful number, since it uses less digits than its factorization.

144231553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57107.

The product of its digits is 7200, while the sum is 28.

The square root of 144231553 is about 12009.6441662524. The cubic root of 144231553 is about 524.4290730799.

Adding to 144231553 its reverse (355132441), we get a palindrome (499363994).

The spelling of 144231553 in words is "one hundred forty-four million, two hundred thirty-one thousand, five hundred fifty-three".