142442837057 has 2 divisors, whose sum is σ = 142442837058. Its totient is φ = 142442837056.

The previous prime is 142442837039. The next prime is 142442837081. The reversal of 142442837057 is 750738244241.

It is a Cunningham number, because it is equal to 377416²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142442837056 + 1 = 377416^2 + 1^2 .

It is an emirp because it is prime and its reverse (750738244241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142442837057 - 2⁶ = 142442836993 is a prime.

It is not a weakly prime, because it can be changed into another prime (142442837027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71221418528 + 71221418529.

It is an arithmetic number, because the mean of its divisors is an integer number (71221418529).

Almost surely, 2^142442837057 is an apocalyptic number.

It is an amenable number.

142442837057 is a deficient number, since it is larger than the sum of its proper divisors (1).

142442837057 is an equidigital number, since it uses as much as digits as its factorization.

142442837057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 47.

The spelling of 142442837057 in words is "one hundred forty-two billion, four hundred forty-two million, eight hundred thirty-seven thousand, fifty-seven".