142440053084657 has 2 divisors, whose sum is σ = 142440053084658. Its totient is φ = 142440053084656.

The previous prime is 142440053084617. The next prime is 142440053084713. The reversal of 142440053084657 is 756480350044241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142160575918321 + 279477166336 = 11923111^2 + 528656^2 .

It is a cyclic number.

It is not a de Polignac number, because 142440053084657 - 2³⁸ = 142165175177713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142440053084599 and 142440053084608.

It is not a weakly prime, because it can be changed into another prime (142440053084617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71220026542328 + 71220026542329.

It is an arithmetic number, because the mean of its divisors is an integer number (71220026542329).

Almost surely, 2^{142440053084657} is an apocalyptic number.

It is an amenable number.

142440053084657 is a deficient number, since it is larger than the sum of its proper divisors (1).

142440053084657 is an equidigital number, since it uses as much as digits as its factorization.

142440053084657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12902400, while the sum is 53.

The spelling of 142440053084657 in words is "one hundred forty-two trillion, four hundred forty billion, fifty-three million, eighty-four thousand, six hundred fifty-seven".