142031017 has 2 divisors, whose sum is σ = 142031018. Its totient is φ = 142031016.

The previous prime is 142030991. The next prime is 142031059. The reversal of 142031017 is 710130241.

142031017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77774761 + 64256256 = 8819^2 + 8016^2 .

It is an emirp because it is prime and its reverse (710130241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142031017 - 2¹¹ = 142028969 is a prime.

It is equal to p_8020315 and since 142031017 and 8020315 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 142030985 and 142031003.

It is not a weakly prime, because it can be changed into another prime (142031077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71015508 + 71015509.

It is an arithmetic number, because the mean of its divisors is an integer number (71015509).

Almost surely, 2^142031017 is an apocalyptic number.

It is an amenable number.

142031017 is a deficient number, since it is larger than the sum of its proper divisors (1).

142031017 is an equidigital number, since it uses as much as digits as its factorization.

142031017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 142031017 is about 11917.6766611618. The cubic root of 142031017 is about 521.7483275189.

Adding to 142031017 its reverse (710130241), we get a palindrome (852161258).

The spelling of 142031017 in words is "one hundred forty-two million, thirty-one thousand, seventeen".