142398396557 has 2 divisors, whose sum is σ = 142398396558. Its totient is φ = 142398396556.

The previous prime is 142398396541. The next prime is 142398396563. The reversal of 142398396557 is 755693893241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111248264521 + 31150132036 = 333539^2 + 176494^2 .

It is a cyclic number.

It is not a de Polignac number, because 142398396557 - 2⁴ = 142398396541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142398396557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142398396757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71199198278 + 71199198279.

It is an arithmetic number, because the mean of its divisors is an integer number (71199198279).

Almost surely, 2^142398396557 is an apocalyptic number.

It is an amenable number.

142398396557 is a deficient number, since it is larger than the sum of its proper divisors (1).

142398396557 is an equidigital number, since it uses as much as digits as its factorization.

142398396557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48988800, while the sum is 62.

The spelling of 142398396557 in words is "one hundred forty-two billion, three hundred ninety-eight million, three hundred ninety-six thousand, five hundred fifty-seven".