142003117 has 2 divisors, whose sum is σ = 142003118. Its totient is φ = 142003116.

The previous prime is 142003097. The next prime is 142003139. The reversal of 142003117 is 711300241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109956196 + 32046921 = 10486^2 + 5661^2 .

It is a cyclic number.

It is not a de Polignac number, because 142003117 - 2²⁷ = 7785389 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 142003094 and 142003103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142003717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71001558 + 71001559.

It is an arithmetic number, because the mean of its divisors is an integer number (71001559).

Almost surely, 2^142003117 is an apocalyptic number.

It is an amenable number.

142003117 is a deficient number, since it is larger than the sum of its proper divisors (1).

142003117 is an equidigital number, since it uses as much as digits as its factorization.

142003117 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 142003117 is about 11916.5060735100. The cubic root of 142003117 is about 521.7141619028.

Adding to 142003117 its reverse (711300241), we get a palindrome (853303358).

The spelling of 142003117 in words is "one hundred forty-two million, three thousand, one hundred seventeen".