144523117 has 2 divisors, whose sum is σ = 144523118. Its totient is φ = 144523116.

The previous prime is 144523109. The next prime is 144523123. The reversal of 144523117 is 711325441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75533481 + 68989636 = 8691^2 + 8306^2 .

It is a cyclic number.

It is not a de Polignac number, because 144523117 - 2³ = 144523109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144533117) 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 as a sum of consecutive naturals, namely, 72261558 + 72261559.

It is an arithmetic number, because the mean of its divisors is an integer number (72261559).

Almost surely, 2^144523117 is an apocalyptic number.

It is an amenable number.

144523117 is a deficient number, since it is larger than the sum of its proper divisors (1).

144523117 is an equidigital number, since it uses as much as digits as its factorization.

144523117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 144523117 is about 12021.7767821566. The cubic root of 144523117 is about 524.7822129175.

Adding to 144523117 its reverse (711325441), we get a palindrome (855848558).

The spelling of 144523117 in words is "one hundred forty-four million, five hundred twenty-three thousand, one hundred seventeen".