144431351 has 8 divisors (see below), whose sum is σ = 148399440. Its totient is φ = 140514048.

The previous prime is 144431323. The next prime is 144431359. The reversal of 144431351 is 153134441.

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 144431351 - 2¹⁰ = 144430327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144431351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144431359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6896 + ... + 18341.

It is an arithmetic number, because the mean of its divisors is an integer number (18549930).

Almost surely, 2^144431351 is an apocalyptic number.

144431351 is a deficient number, since it is larger than the sum of its proper divisors (3968089).

144431351 is an equidigital number, since it uses as much as digits as its factorization.

144431351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25393.

The product of its digits is 2880, while the sum is 26.

The square root of 144431351 is about 12017.9595189866. The cubic root of 144431351 is about 524.6711179782.

Adding to 144431351 its reverse (153134441), we get a palindrome (297565792).

The spelling of 144431351 in words is "one hundred forty-four million, four hundred thirty-one thousand, three hundred fifty-one".