144625993 has 2 divisors, whose sum is σ = 144625994. Its totient is φ = 144625992.

The previous prime is 144625991. The next prime is 144626017. The reversal of 144625993 is 399526441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141776649 + 2849344 = 11907^2 + 1688^2 .

It is a cyclic number.

It is not a de Polignac number, because 144625993 - 2¹ = 144625991 is a prime.

Together with 144625991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (144625991) 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, 72312996 + 72312997.

It is an arithmetic number, because the mean of its divisors is an integer number (72312997).

Almost surely, 2^144625993 is an apocalyptic number.

It is an amenable number.

144625993 is a deficient number, since it is larger than the sum of its proper divisors (1).

144625993 is an equidigital number, since it uses as much as digits as its factorization.

144625993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 43.

The square root of 144625993 is about 12026.0547562366. The cubic root of 144625993 is about 524.9067020907.

The spelling of 144625993 in words is "one hundred forty-four million, six hundred twenty-five thousand, nine hundred ninety-three".