142235315249 has 2 divisors, whose sum is σ = 142235315250. Its totient is φ = 142235315248.

The previous prime is 142235315239. The next prime is 142235315269. The reversal of 142235315249 is 942513532241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111726405025 + 30508910224 = 334255^2 + 174668^2 .

It is a cyclic number.

It is not a de Polignac number, because 142235315249 - 2¹⁶ = 142235249713 is a prime.

It is not a weakly prime, because it can be changed into another prime (142235315239) 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, 71117657624 + 71117657625.

It is an arithmetic number, because the mean of its divisors is an integer number (71117657625).

Almost surely, 2^142235315249 is an apocalyptic number.

It is an amenable number.

142235315249 is a deficient number, since it is larger than the sum of its proper divisors (1).

142235315249 is an equidigital number, since it uses as much as digits as its factorization.

142235315249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

The spelling of 142235315249 in words is "one hundred forty-two billion, two hundred thirty-five million, three hundred fifteen thousand, two hundred forty-nine".