144500857 has 2 divisors, whose sum is σ = 144500858. Its totient is φ = 144500856.

The previous prime is 144500849. The next prime is 144500891. The reversal of 144500857 is 758005441.

144500857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (144500891) can be obtained adding 144500857 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83832336 + 60668521 = 9156^2 + 7789^2 .

It is a cyclic number.

It is not a de Polignac number, because 144500857 - 2³ = 144500849 is a prime.

It is not a weakly prime, because it can be changed into another prime (144500957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72250428 + 72250429.

It is an arithmetic number, because the mean of its divisors is an integer number (72250429).

Almost surely, 2^144500857 is an apocalyptic number.

It is an amenable number.

144500857 is a deficient number, since it is larger than the sum of its proper divisors (1).

144500857 is an equidigital number, since it uses as much as digits as its factorization.

144500857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 144500857 is about 12020.8509266191. The cubic root of 144500857 is about 524.7552685502.

The spelling of 144500857 in words is "one hundred forty-four million, five hundred thousand, eight hundred fifty-seven".