144834581 has 2 divisors, whose sum is σ = 144834582. Its totient is φ = 144834580.

The previous prime is 144834559. The next prime is 144834607. The reversal of 144834581 is 185438441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73702225 + 71132356 = 8585^2 + 8434^2 .

It is a cyclic number.

It is not a de Polignac number, because 144834581 - 2²² = 140640277 is a prime.

It is a super-2 number, since 2×144834581² = 41954111706891122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144834551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72417290 + 72417291.

It is an arithmetic number, because the mean of its divisors is an integer number (72417291).

Almost surely, 2^144834581 is an apocalyptic number.

It is an amenable number.

144834581 is a deficient number, since it is larger than the sum of its proper divisors (1).

144834581 is an equidigital number, since it uses as much as digits as its factorization.

144834581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 38.

The square root of 144834581 is about 12034.7239685836. The cubic root of 144834581 is about 525.1589311720.

The spelling of 144834581 in words is "one hundred forty-four million, eight hundred thirty-four thousand, five hundred eighty-one".