142255239409 has 2 divisors, whose sum is σ = 142255239410. Its totient is φ = 142255239408.

The previous prime is 142255239389. The next prime is 142255239461. The reversal of 142255239409 is 904932552241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131676088384 + 10579151025 = 362872^2 + 102855^2 .

It is a cyclic number.

It is not a de Polignac number, because 142255239409 - 2⁵ = 142255239377 is a prime.

It is not a weakly prime, because it can be changed into another prime (142255239509) 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, 71127619704 + 71127619705.

It is an arithmetic number, because the mean of its divisors is an integer number (71127619705).

Almost surely, 2^142255239409 is an apocalyptic number.

It is an amenable number.

142255239409 is a deficient number, since it is larger than the sum of its proper divisors (1).

142255239409 is an equidigital number, since it uses as much as digits as its factorization.

142255239409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 142255239409 in words is "one hundred forty-two billion, two hundred fifty-five million, two hundred thirty-nine thousand, four hundred nine".