144254861 has 2 divisors, whose sum is σ = 144254862. Its totient is φ = 144254860.

The previous prime is 144254857. The next prime is 144254863. The reversal of 144254861 is 168452441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94284100 + 49970761 = 9710^2 + 7069^2 .

It is a cyclic number.

It is not a de Polignac number, because 144254861 - 2² = 144254857 is a prime.

Together with 144254863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144254863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72127430 + 72127431.

It is an arithmetic number, because the mean of its divisors is an integer number (72127431).

Almost surely, 2^144254861 is an apocalyptic number.

It is an amenable number.

144254861 is a deficient number, since it is larger than the sum of its proper divisors (1).

144254861 is an equidigital number, since it uses as much as digits as its factorization.

144254861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 35.

The square root of 144254861 is about 12010.6145138373. The cubic root of 144254861 is about 524.4573210238.

The spelling of 144254861 in words is "one hundred forty-four million, two hundred fifty-four thousand, eight hundred sixty-one".