144304020890857 has 2 divisors, whose sum is σ = 144304020890858. Its totient is φ = 144304020890856.

The previous prime is 144304020890797. The next prime is 144304020890987. The reversal of 144304020890857 is 758098020403441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136880733756816 + 7423287134041 = 11699604^2 + 2724571^2 .

It is an emirp because it is prime and its reverse (758098020403441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144304020890857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144304020890798 and 144304020890807.

It is not a weakly prime, because it can be changed into another prime (144304020890357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72152010445428 + 72152010445429.

It is an arithmetic number, because the mean of its divisors is an integer number (72152010445429).

Almost surely, 2^{144304020890857} is an apocalyptic number.

It is an amenable number.

144304020890857 is a deficient number, since it is larger than the sum of its proper divisors (1).

144304020890857 is an equidigital number, since it uses as much as digits as its factorization.

144304020890857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 144304020890857 in words is "one hundred forty-four trillion, three hundred four billion, twenty million, eight hundred ninety thousand, eight hundred fifty-seven".