142290871 has 2 divisors, whose sum is σ = 142290872. Its totient is φ = 142290870.

The previous prime is 142290821. The next prime is 142290893. The reversal of 142290871 is 178092241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142290871 - 2¹¹ = 142288823 is a prime.

It is a super-3 number, since 3×142290871³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142290821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71145435 + 71145436.

It is an arithmetic number, because the mean of its divisors is an integer number (71145436).

Almost surely, 2^142290871 is an apocalyptic number.

142290871 is a deficient number, since it is larger than the sum of its proper divisors (1).

142290871 is an equidigital number, since it uses as much as digits as its factorization.

142290871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 142290871 is about 11928.5737202735. The cubic root of 142290871 is about 522.0663232963.

The spelling of 142290871 in words is "one hundred forty-two million, two hundred ninety thousand, eight hundred seventy-one".