142130291 has 2 divisors, whose sum is σ = 142130292. Its totient is φ = 142130290.

The previous prime is 142130281. The next prime is 142130297. The reversal of 142130291 is 192031241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142130291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142130297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71065145 + 71065146.

It is an arithmetic number, because the mean of its divisors is an integer number (71065146).

Almost surely, 2^142130291 is an apocalyptic number.

142130291 is a deficient number, since it is larger than the sum of its proper divisors (1).

142130291 is an equidigital number, since it uses as much as digits as its factorization.

142130291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 142130291 is about 11921.8409232803. The cubic root of 142130291 is about 521.8698596121.

The spelling of 142130291 in words is "one hundred forty-two million, one hundred thirty thousand, two hundred ninety-one".