278112383 has 2 divisors, whose sum is σ = 278112384. Its totient is φ = 278112382.

The previous prime is 278112379. The next prime is 278112391. The reversal of 278112383 is 383211872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 278112383 - 2² = 278112379 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (278118383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139056191 + 139056192.

It is an arithmetic number, because the mean of its divisors is an integer number (139056192).

Almost surely, 2^278112383 is an apocalyptic number.

278112383 is a deficient number, since it is larger than the sum of its proper divisors (1).

278112383 is an equidigital number, since it uses as much as digits as its factorization.

278112383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 35.

The square root of 278112383 is about 16676.7018022150. The cubic root of 278112383 is about 652.7398221019.

The spelling of 278112383 in words is "two hundred seventy-eight million, one hundred twelve thousand, three hundred eighty-three".