144651386557 has 2 divisors, whose sum is σ = 144651386558. Its totient is φ = 144651386556.

The previous prime is 144651386543. The next prime is 144651386609. The reversal of 144651386557 is 755683156441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87249935161 + 57401451396 = 295381^2 + 239586^2 .

It is a cyclic number.

It is not a de Polignac number, because 144651386557 - 2³⁵ = 110291648189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144651386498 and 144651386507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144651386057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72325693278 + 72325693279.

It is an arithmetic number, because the mean of its divisors is an integer number (72325693279).

Almost surely, 2^144651386557 is an apocalyptic number.

It is an amenable number.

144651386557 is a deficient number, since it is larger than the sum of its proper divisors (1).

144651386557 is an equidigital number, since it uses as much as digits as its factorization.

144651386557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096000, while the sum is 55.

The spelling of 144651386557 in words is "one hundred forty-four billion, six hundred fifty-one million, three hundred eighty-six thousand, five hundred fifty-seven".