144170520421 has 2 divisors, whose sum is σ = 144170520422. Its totient is φ = 144170520420.

The previous prime is 144170520397. The next prime is 144170520427. The reversal of 144170520421 is 124025071441.

It is a happy number.

144170520421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138301428321 + 5869092100 = 371889^2 + 76610^2 .

It is a cyclic number.

It is not a de Polignac number, because 144170520421 - 2²⁵ = 144136965989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144170520427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72085260210 + 72085260211.

It is an arithmetic number, because the mean of its divisors is an integer number (72085260211).

Almost surely, 2^144170520421 is an apocalyptic number.

It is an amenable number.

144170520421 is a deficient number, since it is larger than the sum of its proper divisors (1).

144170520421 is an equidigital number, since it uses as much as digits as its factorization.

144170520421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 31.

Adding to 144170520421 its reverse (124025071441), we get a palindrome (268195591862).

The spelling of 144170520421 in words is "one hundred forty-four billion, one hundred seventy million, five hundred twenty thousand, four hundred twenty-one".