144332557 has 2 divisors, whose sum is σ = 144332558. Its totient is φ = 144332556.

The previous prime is 144332543. The next prime is 144332593. The reversal of 144332557 is 755233441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94361796 + 49970761 = 9714^2 + 7069^2 .

It is a cyclic number.

It is not a de Polignac number, because 144332557 - 2²³ = 135943949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144332537) 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 as a sum of consecutive naturals, namely, 72166278 + 72166279.

It is an arithmetic number, because the mean of its divisors is an integer number (72166279).

Almost surely, 2^144332557 is an apocalyptic number.

It is an amenable number.

144332557 is a deficient number, since it is larger than the sum of its proper divisors (1).

144332557 is an equidigital number, since it uses as much as digits as its factorization.

144332557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 34.

The square root of 144332557 is about 12013.8485507351. The cubic root of 144332557 is about 524.5514620975.

Adding to 144332557 its reverse (755233441), we get a palindrome (899565998).

The spelling of 144332557 in words is "one hundred forty-four million, three hundred thirty-two thousand, five hundred fifty-seven".