142321163401457 has 2 divisors, whose sum is σ = 142321163401458. Its totient is φ = 142321163401456.

The previous prime is 142321163401411. The next prime is 142321163401517. The reversal of 142321163401457 is 754104361123241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142231288757776 + 89874643681 = 11926076^2 + 299791^2 .

It is a cyclic number.

It is not a de Polignac number, because 142321163401457 - 2³⁰ = 142320089659633 is a prime.

It is not a weakly prime, because it can be changed into another prime (142321163401657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71160581700728 + 71160581700729.

It is an arithmetic number, because the mean of its divisors is an integer number (71160581700729).

Almost surely, 2^{142321163401457} is an apocalyptic number.

It is an amenable number.

142321163401457 is a deficient number, since it is larger than the sum of its proper divisors (1).

142321163401457 is an equidigital number, since it uses as much as digits as its factorization.

142321163401457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 142321163401457 in words is "one hundred forty-two trillion, three hundred twenty-one billion, one hundred sixty-three million, four hundred one thousand, four hundred fifty-seven".