144330917 has 2 divisors, whose sum is σ = 144330918. Its totient is φ = 144330916.

The previous prime is 144330899. The next prime is 144331021. The reversal of 144330917 is 719033441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144024001 + 306916 = 12001^2 + 554^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144330917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144330617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72165458 + 72165459.

It is an arithmetic number, because the mean of its divisors is an integer number (72165459).

Almost surely, 2^144330917 is an apocalyptic number.

It is an amenable number.

144330917 is a deficient number, since it is larger than the sum of its proper divisors (1).

144330917 is an equidigital number, since it uses as much as digits as its factorization.

144330917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 144330917 is about 12013.7802959768. The cubic root of 144330917 is about 524.5494753255.

The spelling of 144330917 in words is "one hundred forty-four million, three hundred thirty thousand, nine hundred seventeen".