142119287 has 2 divisors, whose sum is σ = 142119288. Its totient is φ = 142119286.

The previous prime is 142119181. The next prime is 142119293. The reversal of 142119287 is 782911241.

142119287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142119287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142119787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71059643 + 71059644.

It is an arithmetic number, because the mean of its divisors is an integer number (71059644).

Almost surely, 2^142119287 is an apocalyptic number.

142119287 is a deficient number, since it is larger than the sum of its proper divisors (1).

142119287 is an equidigital number, since it uses as much as digits as its factorization.

142119287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 35.

The square root of 142119287 is about 11921.3794084410. The cubic root of 142119287 is about 521.8563912090.

The spelling of 142119287 in words is "one hundred forty-two million, one hundred nineteen thousand, two hundred eighty-seven".