142321205035249 has 2 divisors, whose sum is σ = 142321205035250. Its totient is φ = 142321205035248.

The previous prime is 142321205035241. The next prime is 142321205035279. The reversal of 142321205035249 is 942530502123241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114271396448400 + 28049808586849 = 10689780^2 + 5296207^2 .

It is a cyclic number.

It is not a de Polignac number, because 142321205035249 - 2³ = 142321205035241 is a prime.

It is a super-2 number, since 2×142321205035249² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142321205035241) 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, 71160602517624 + 71160602517625.

It is an arithmetic number, because the mean of its divisors is an integer number (71160602517625).

Almost surely, 2^{142321205035249} is an apocalyptic number.

It is an amenable number.

142321205035249 is a deficient number, since it is larger than the sum of its proper divisors (1).

142321205035249 is an equidigital number, since it uses as much as digits as its factorization.

142321205035249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 142321205035249 in words is "one hundred forty-two trillion, three hundred twenty-one billion, two hundred five million, thirty-five thousand, two hundred forty-nine".