142742600509 has 2 divisors, whose sum is σ = 142742600510. Its totient is φ = 142742600508.

The previous prime is 142742600447. The next prime is 142742600543. The reversal of 142742600509 is 905006247241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106927038009 + 35815562500 = 326997^2 + 189250^2 .

It is a cyclic number.

It is not a de Polignac number, because 142742600509 - 2²⁹ = 142205729597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142742600909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71371300254 + 71371300255.

It is an arithmetic number, because the mean of its divisors is an integer number (71371300255).

Almost surely, 2^142742600509 is an apocalyptic number.

It is an amenable number.

142742600509 is a deficient number, since it is larger than the sum of its proper divisors (1).

142742600509 is an equidigital number, since it uses as much as digits as its factorization.

142742600509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 142742600509 in words is "one hundred forty-two billion, seven hundred forty-two million, six hundred thousand, five hundred nine".