138846283 has 4 divisors (see below), whose sum is σ = 138896800. Its totient is φ = 138795768.

The previous prime is 138846263. The next prime is 138846289. The reversal of 138846283 is 382648831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138846283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138846289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20883 + ... + 26716.

It is an arithmetic number, because the mean of its divisors is an integer number (34724200).

Almost surely, 2^138846283 is an apocalyptic number.

138846283 is a deficient number, since it is larger than the sum of its proper divisors (50517).

138846283 is an equidigital number, since it uses as much as digits as its factorization.

138846283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50516.

The product of its digits is 221184, while the sum is 43.

The square root of 138846283 is about 11783.3052663504. The cubic root of 138846283 is about 517.8191243487.

It can be divided in two parts, 138846 and 283, that added together give a square (139129 = 373²).

The spelling of 138846283 in words is "one hundred thirty-eight million, eight hundred forty-six thousand, two hundred eighty-three".