112143139 has 2 divisors, whose sum is σ = 112143140. Its totient is φ = 112143138.

The previous prime is 112143137. The next prime is 112143191. The reversal of 112143139 is 931341211.

It is a weak prime.

It is an emirp because it is prime and its reverse (931341211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112143139 - 2¹ = 112143137 is a prime.

Together with 112143137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (112143137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56071569 + 56071570.

It is an arithmetic number, because the mean of its divisors is an integer number (56071570).

Almost surely, 2^112143139 is an apocalyptic number.

112143139 is a deficient number, since it is larger than the sum of its proper divisors (1).

112143139 is an equidigital number, since it uses as much as digits as its factorization.

112143139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 25.

The square root of 112143139 is about 10589.7657670035. The cubic root of 112143139 is about 482.2337138416.

The spelling of 112143139 in words is "one hundred twelve million, one hundred forty-three thousand, one hundred thirty-nine".