1996142231137 has 2 divisors, whose sum is σ = 1996142231138. Its totient is φ = 1996142231136.

The previous prime is 1996142231129. The next prime is 1996142231159. The reversal of 1996142231137 is 7311322416991.

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., 1262171359296 + 733970871841 = 1123464^2 + 856721^2 .

It is a cyclic number.

It is not a de Polignac number, because 1996142231137 - 2³ = 1996142231129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1996142231107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998071115568 + 998071115569.

It is an arithmetic number, because the mean of its divisors is an integer number (998071115569).

Almost surely, 2^{1996142231137} is an apocalyptic number.

It is an amenable number.

1996142231137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996142231137 is an equidigital number, since it uses as much as digits as its factorization.

1996142231137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 49.

The spelling of 1996142231137 in words is "one trillion, nine hundred ninety-six billion, one hundred forty-two million, two hundred thirty-one thousand, one hundred thirty-seven".