142686241 has 2 divisors, whose sum is σ = 142686242. Its totient is φ = 142686240.

The previous prime is 142686239. The next prime is 142686277.

142686241 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123676641 + 19009600 = 11121^2 + 4360^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 142686241 - 2¹ = 142686239 is a prime.

Together with 142686239, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 142686197 and 142686206.

It is not a weakly prime, because it can be changed into another prime (142386241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71343120 + 71343121.

It is an arithmetic number, because the mean of its divisors is an integer number (71343121).

Almost surely, 2^142686241 is an apocalyptic number.

It is an amenable number.

142686241 is a deficient number, since it is larger than the sum of its proper divisors (1).

142686241 is an equidigital number, since it uses as much as digits as its factorization.

142686241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 34.

The square root of 142686241 is about 11945.1346162360. The cubic root of 142686241 is about 522.5494146774.

The spelling of 142686241 in words is "one hundred forty-two million, six hundred eighty-six thousand, two hundred forty-one".