142252489 has 2 divisors, whose sum is σ = 142252490. Its totient is φ = 142252488.

The previous prime is 142252483. The next prime is 142252543. The reversal of 142252489 is 984252241.

142252489 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., 136492489 + 5760000 = 11683^2 + 2400^2 .

It is a cyclic number.

It is not a de Polignac number, because 142252489 - 2⁷ = 142252361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142252483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71126244 + 71126245.

It is an arithmetic number, because the mean of its divisors is an integer number (71126245).

Almost surely, 2^142252489 is an apocalyptic number.

It is an amenable number.

142252489 is a deficient number, since it is larger than the sum of its proper divisors (1).

142252489 is an equidigital number, since it uses as much as digits as its factorization.

142252489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The square root of 142252489 is about 11926.9647857282. The cubic root of 142252489 is about 522.0193777885.

It can be divided in two parts, 14 and 2252489, that added together give a triangular number (2252503 = T₂₁₂₂).

The spelling of 142252489 in words is "one hundred forty-two million, two hundred fifty-two thousand, four hundred eighty-nine".