142581694753 has 2 divisors, whose sum is σ = 142581694754. Its totient is φ = 142581694752.

The previous prime is 142581694667. The next prime is 142581694837. The reversal of 142581694753 is 357496185241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125109349264 + 17472345489 = 353708^2 + 132183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142581694753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142581694694 and 142581694703.

It is not a weakly prime, because it can be changed into another prime (142581692753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71290847376 + 71290847377.

It is an arithmetic number, because the mean of its divisors is an integer number (71290847377).

Almost surely, 2^142581694753 is an apocalyptic number.

It is an amenable number.

142581694753 is a deficient number, since it is larger than the sum of its proper divisors (1).

142581694753 is an equidigital number, since it uses as much as digits as its factorization.

142581694753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 55.

The spelling of 142581694753 in words is "one hundred forty-two billion, five hundred eighty-one million, six hundred ninety-four thousand, seven hundred fifty-three".