142857138409057 has 2 divisors, whose sum is σ = 142857138409058. Its totient is φ = 142857138409056.

The previous prime is 142857138409033. The next prime is 142857138409099. The reversal of 142857138409057 is 750904831758241.

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., 83564535780496 + 59292602628561 = 9141364^2 + 7700169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142857138409057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142857138409057.

It is not a weakly prime, because it can be changed into another prime (142857138409457) 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, 71428569204528 + 71428569204529.

It is an arithmetic number, because the mean of its divisors is an integer number (71428569204529).

Almost surely, 2^{142857138409057} is an apocalyptic number.

It is an amenable number.

142857138409057 is a deficient number, since it is larger than the sum of its proper divisors (1).

142857138409057 is an equidigital number, since it uses as much as digits as its factorization.

142857138409057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67737600, while the sum is 64.

The spelling of 142857138409057 in words is "one hundred forty-two trillion, eight hundred fifty-seven billion, one hundred thirty-eight million, four hundred nine thousand, fifty-seven".