144007257 has 8 divisors (see below), whose sum is σ = 192065920. Its totient is φ = 95976720.

The previous prime is 144007249. The next prime is 144007261. The reversal of 144007257 is 752700441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144007257 - 2³ = 144007249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144007217) 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, 13407 + ... + 21627.

It is an arithmetic number, because the mean of its divisors is an integer number (24008240).

Almost surely, 2^144007257 is an apocalyptic number.

It is an amenable number.

144007257 is a deficient number, since it is larger than the sum of its proper divisors (48058663).

144007257 is an equidigital number, since it uses as much as digits as its factorization.

144007257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14063.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 144007257 is about 12000.3023711905. The cubic root of 144007257 is about 524.1570836570.

Adding to 144007257 its reverse (752700441), we get a palindrome (896707698).

The spelling of 144007257 in words is "one hundred forty-four million, seven thousand, two hundred fifty-seven".