142291287269 has 2 divisors, whose sum is σ = 142291287270. Its totient is φ = 142291287268.

The previous prime is 142291287253. The next prime is 142291287317. The reversal of 142291287269 is 962782192241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142291156225 + 131044 = 377215^2 + 362^2 .

It is a cyclic number.

It is not a de Polignac number, because 142291287269 - 2⁴ = 142291287253 is a prime.

It is a super-2 number, since 2×142291287269² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142291287269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142291247269) 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, 71145643634 + 71145643635.

It is an arithmetic number, because the mean of its divisors is an integer number (71145643635).

Almost surely, 2^142291287269 is an apocalyptic number.

It is an amenable number.

142291287269 is a deficient number, since it is larger than the sum of its proper divisors (1).

142291287269 is an equidigital number, since it uses as much as digits as its factorization.

142291287269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 53.

The spelling of 142291287269 in words is "one hundred forty-two billion, two hundred ninety-one million, two hundred eighty-seven thousand, two hundred sixty-nine".