83138423 has 2 divisors, whose sum is σ = 83138424. Its totient is φ = 83138422.

The previous prime is 83138411. The next prime is 83138477. The reversal of 83138423 is 32483138.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83138423 - 2¹⁶ = 83072887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83138423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83138023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41569211 + 41569212.

It is an arithmetic number, because the mean of its divisors is an integer number (41569212).

Almost surely, 2^83138423 is an apocalyptic number.

83138423 is a deficient number, since it is larger than the sum of its proper divisors (1).

83138423 is an equidigital number, since it uses as much as digits as its factorization.

83138423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 83138423 is about 9118.0273634158. The cubic root of 83138423 is about 436.4494268046.

The spelling of 83138423 in words is "eighty-three million, one hundred thirty-eight thousand, four hundred twenty-three".