144342142921 has 2 divisors, whose sum is σ = 144342142922. Its totient is φ = 144342142920.

The previous prime is 144342142877. The next prime is 144342142933. The reversal of 144342142921 is 129241243441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120506179600 + 23835963321 = 347140^2 + 154389^2 .

It is a cyclic number.

It is not a de Polignac number, because 144342142921 - 2⁷ = 144342142793 is a prime.

It is not a weakly prime, because it can be changed into another prime (144342142951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72171071460 + 72171071461.

It is an arithmetic number, because the mean of its divisors is an integer number (72171071461).

Almost surely, 2^144342142921 is an apocalyptic number.

It is an amenable number.

144342142921 is a deficient number, since it is larger than the sum of its proper divisors (1).

144342142921 is an equidigital number, since it uses as much as digits as its factorization.

144342142921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 37.

The spelling of 144342142921 in words is "one hundred forty-four billion, three hundred forty-two million, one hundred forty-two thousand, nine hundred twenty-one".