142326013542257 has 2 divisors, whose sum is σ = 142326013542258. Its totient is φ = 142326013542256.

The previous prime is 142326013542227. The next prime is 142326013542313. The reversal of 142326013542257 is 752245310623241.

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., 82904594198416 + 59421419343841 = 9105196^2 + 7708529^2 .

It is a cyclic number.

It is not a de Polignac number, because 142326013542257 - 2⁸ = 142326013542001 is a prime.

It is not a weakly prime, because it can be changed into another prime (142326013542227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71163006771128 + 71163006771129.

It is an arithmetic number, because the mean of its divisors is an integer number (71163006771129).

Almost surely, 2^{142326013542257} is an apocalyptic number.

It is an amenable number.

142326013542257 is a deficient number, since it is larger than the sum of its proper divisors (1).

142326013542257 is an equidigital number, since it uses as much as digits as its factorization.

142326013542257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 142326013542257 in words is "one hundred forty-two trillion, three hundred twenty-six billion, thirteen million, five hundred forty-two thousand, two hundred fifty-seven".