142402303187857 has 2 divisors, whose sum is σ = 142402303187858. Its totient is φ = 142402303187856.

The previous prime is 142402303187813. The next prime is 142402303187887. The reversal of 142402303187857 is 758781303204241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115362292787856 + 27040010400001 = 10740684^2 + 5200001^2 .

It is a cyclic number.

It is not a de Polignac number, because 142402303187857 - 2³⁵ = 142367943449489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142402303187798 and 142402303187807.

It is not a weakly prime, because it can be changed into another prime (142402303187887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71201151593928 + 71201151593929.

It is an arithmetic number, because the mean of its divisors is an integer number (71201151593929).

Almost surely, 2^{142402303187857} is an apocalyptic number.

It is an amenable number.

142402303187857 is a deficient number, since it is larger than the sum of its proper divisors (1).

142402303187857 is an equidigital number, since it uses as much as digits as its factorization.

142402303187857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 55.

The spelling of 142402303187857 in words is "one hundred forty-two trillion, four hundred two billion, three hundred three million, one hundred eighty-seven thousand, eight hundred fifty-seven".