144696817 has 2 divisors, whose sum is σ = 144696818. Its totient is φ = 144696816.

The previous prime is 144696787. The next prime is 144696829. The reversal of 144696817 is 718696441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138391696 + 6305121 = 11764^2 + 2511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144696817 is a prime.

It is not a weakly prime, because it can be changed into another prime (144696857) 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, 72348408 + 72348409.

It is an arithmetic number, because the mean of its divisors is an integer number (72348409).

Almost surely, 2^144696817 is an apocalyptic number.

It is an amenable number.

144696817 is a deficient number, since it is larger than the sum of its proper divisors (1).

144696817 is an equidigital number, since it uses as much as digits as its factorization.

144696817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The square root of 144696817 is about 12028.9990024108. Note that the first 3 decimals coincide. The cubic root of 144696817 is about 524.9923711665.

The spelling of 144696817 in words is "one hundred forty-four million, six hundred ninety-six thousand, eight hundred seventeen".