138632803 has 2 divisors, whose sum is σ = 138632804. Its totient is φ = 138632802.

The previous prime is 138632801. The next prime is 138632833. The reversal of 138632803 is 308236831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138632803 - 2¹ = 138632801 is a prime.

Together with 138632801, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (138632801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69316401 + 69316402.

It is an arithmetic number, because the mean of its divisors is an integer number (69316402).

Almost surely, 2^138632803 is an apocalyptic number.

138632803 is a deficient number, since it is larger than the sum of its proper divisors (1).

138632803 is an equidigital number, since it uses as much as digits as its factorization.

138632803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 138632803 is about 11774.2432028560. The cubic root of 138632803 is about 517.5536011443.

The spelling of 138632803 in words is "one hundred thirty-eight million, six hundred thirty-two thousand, eight hundred three".