142853891 has 2 divisors, whose sum is σ = 142853892. Its totient is φ = 142853890.

The previous prime is 142853863. The next prime is 142853903. The reversal of 142853891 is 198358241.

It is a strong prime.

It is an emirp because it is prime and its reverse (198358241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142853891 - 2⁶ = 142853827 is a prime.

It is not a weakly prime, because it can be changed into another prime (142850891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71426945 + 71426946.

It is an arithmetic number, because the mean of its divisors is an integer number (71426946).

Almost surely, 2^142853891 is an apocalyptic number.

142853891 is a deficient number, since it is larger than the sum of its proper divisors (1).

142853891 is an equidigital number, since it uses as much as digits as its factorization.

142853891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 41.

The square root of 142853891 is about 11952.1500576256. The cubic root of 142853891 is about 522.7539920315.

The spelling of 142853891 in words is "one hundred forty-two million, eight hundred fifty-three thousand, eight hundred ninety-one".