142817827 has 2 divisors, whose sum is σ = 142817828. Its totient is φ = 142817826.

The previous prime is 142817809. The next prime is 142817839. The reversal of 142817827 is 728718241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142817827 - 2¹⁹ = 142293539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142817827.

It is not a weakly prime, because it can be changed into another prime (142817027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71408913 + 71408914.

It is an arithmetic number, because the mean of its divisors is an integer number (71408914).

Almost surely, 2^142817827 is an apocalyptic number.

142817827 is a deficient number, since it is larger than the sum of its proper divisors (1).

142817827 is an equidigital number, since it uses as much as digits as its factorization.

142817827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50176, while the sum is 40.

The square root of 142817827 is about 11950.6412798644. The cubic root of 142817827 is about 522.7099979278.

The spelling of 142817827 in words is "one hundred forty-two million, eight hundred seventeen thousand, eight hundred twenty-seven".