144231057 has 8 divisors (see below), whose sum is σ = 213675680. Its totient is φ = 96154020.

The previous prime is 144231049. The next prime is 144231079. The reversal of 144231057 is 750132441.

It is not a de Polignac number, because 144231057 - 2³ = 144231049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5341891 = 144231057 / (1 + 4 + 4 + 2 + 3 + 1 + 0 + 5 + 7).

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 144231057.

It is not an unprimeable number, because it can be changed into a prime (144231037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2670919 + ... + 2670972.

It is an arithmetic number, because the mean of its divisors is an integer number (26709460).

Almost surely, 2^144231057 is an apocalyptic number.

It is an amenable number.

144231057 is a deficient number, since it is larger than the sum of its proper divisors (69444623).

144231057 is an equidigital number, since it uses as much as digits as its factorization.

144231057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5341900 (or 5341894 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 144231057 is about 12009.6235161640. The cubic root of 144231057 is about 524.4284719236.

Adding to 144231057 its reverse (750132441), we get a palindrome (894363498).

The spelling of 144231057 in words is "one hundred forty-four million, two hundred thirty-one thousand, fifty-seven".