142260209257 has 2 divisors, whose sum is σ = 142260209258. Its totient is φ = 142260209256.

The previous prime is 142260209171. The next prime is 142260209269. The reversal of 142260209257 is 752902062241.

142260209257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129847798336 + 12412410921 = 360344^2 + 111411^2 .

It is a cyclic number.

It is not a de Polignac number, because 142260209257 - 2¹⁵ = 142260176489 is a prime.

It is not a weakly prime, because it can be changed into another prime (142260209657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71130104628 + 71130104629.

It is an arithmetic number, because the mean of its divisors is an integer number (71130104629).

Almost surely, 2^142260209257 is an apocalyptic number.

It is an amenable number.

142260209257 is a deficient number, since it is larger than the sum of its proper divisors (1).

142260209257 is an equidigital number, since it uses as much as digits as its factorization.

142260209257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 142260209257 in words is "one hundred forty-two billion, two hundred sixty million, two hundred nine thousand, two hundred fifty-seven".