144028861 has 2 divisors, whose sum is σ = 144028862. Its totient is φ = 144028860.

The previous prime is 144028849. The next prime is 144028891. The reversal of 144028861 is 168820441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131560900 + 12467961 = 11470^2 + 3531^2 .

It is a cyclic number.

It is not a de Polignac number, because 144028861 - 2⁷ = 144028733 is a prime.

It is a super-3 number, since 3×144028861³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144028831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72014430 + 72014431.

It is an arithmetic number, because the mean of its divisors is an integer number (72014431).

Almost surely, 2^144028861 is an apocalyptic number.

It is an amenable number.

144028861 is a deficient number, since it is larger than the sum of its proper divisors (1).

144028861 is an equidigital number, since it uses as much as digits as its factorization.

144028861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 144028861 is about 12001.2024814183. The cubic root of 144028861 is about 524.1832937329.

The spelling of 144028861 in words is "one hundred forty-four million, twenty-eight thousand, eight hundred sixty-one".