144143457 has 4 divisors (see below), whose sum is σ = 192191280. Its totient is φ = 96095636.

The previous prime is 144143449. The next prime is 144143471. The reversal of 144143457 is 754341441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144143457 - 2³ = 144143449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144143477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24023907 + ... + 24023912.

It is an arithmetic number, because the mean of its divisors is an integer number (48047820).

Almost surely, 2^144143457 is an apocalyptic number.

It is an amenable number.

144143457 is a deficient number, since it is larger than the sum of its proper divisors (48047823).

144143457 is an equidigital number, since it uses as much as digits as its factorization.

144143457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48047822.

The product of its digits is 26880, while the sum is 33.

The square root of 144143457 is about 12005.9758870323. The cubic root of 144143457 is about 524.3222783411.

Adding to 144143457 its reverse (754341441), we get a palindrome (898484898).

It can be divided in two parts, 14414 and 3457, that added together give a palindrome (17871).

The spelling of 144143457 in words is "one hundred forty-four million, one hundred forty-three thousand, four hundred fifty-seven".