142412287 has 2 divisors, whose sum is σ = 142412288. Its totient is φ = 142412286.

The previous prime is 142412267. The next prime is 142412329. The reversal of 142412287 is 782214241.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142412287 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142412227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71206143 + 71206144.

It is an arithmetic number, because the mean of its divisors is an integer number (71206144).

Almost surely, 2^142412287 is an apocalyptic number.

142412287 is a deficient number, since it is larger than the sum of its proper divisors (1).

142412287 is an equidigital number, since it uses as much as digits as its factorization.

142412287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7168, while the sum is 31.

The square root of 142412287 is about 11933.6619275057. The cubic root of 142412287 is about 522.2147731664.

The spelling of 142412287 in words is "one hundred forty-two million, four hundred twelve thousand, two hundred eighty-seven".