144043551 has 24 divisors (see below), whose sum is σ = 215822880. Its totient is φ = 92465856.

The previous prime is 144043511. The next prime is 144043643. The reversal of 144043551 is 155340441.

It is a happy number.

It is not a de Polignac number, because 144043551 - 2¹⁰ = 144042527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144043511) 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, 168441 + ... + 169293.

It is an arithmetic number, because the mean of its divisors is an integer number (8992620).

Almost surely, 2^144043551 is an apocalyptic number.

144043551 is a deficient number, since it is larger than the sum of its proper divisors (71779329).

144043551 is a wasteful number, since it uses less digits than its factorization.

144043551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535 (or 1532 counting only the distinct ones).

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

The square root of 144043551 is about 12001.8144878181. The cubic root of 144043551 is about 524.2011142140.

Adding to 144043551 its reverse (155340441), we get a palindrome (299383992).

It can be divided in two parts, 14404 and 3551, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 144043551 in words is "one hundred forty-four million, forty-three thousand, five hundred fifty-one".