142702291 has 2 divisors, whose sum is σ = 142702292. Its totient is φ = 142702290.

The previous prime is 142702283. The next prime is 142702309. The reversal of 142702291 is 192207241.

It is a weak prime.

It is an emirp because it is prime and its reverse (192207241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142702291 - 2³ = 142702283 is a prime.

It is not a weakly prime, because it can be changed into another prime (142702991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71351145 + 71351146.

It is an arithmetic number, because the mean of its divisors is an integer number (71351146).

Almost surely, 2^142702291 is an apocalyptic number.

142702291 is a deficient number, since it is larger than the sum of its proper divisors (1).

142702291 is an equidigital number, since it uses as much as digits as its factorization.

142702291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 142702291 is about 11945.8064189907. The cubic root of 142702291 is about 522.5690068577.

It can be divided in two parts, 14270 and 2291, that added together give a palindrome (16561).

The spelling of 142702291 in words is "one hundred forty-two million, seven hundred two thousand, two hundred ninety-one".