138035603 has 2 divisors, whose sum is σ = 138035604. Its totient is φ = 138035602.

The previous prime is 138035587. The next prime is 138035629. The reversal of 138035603 is 306530831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138035603 - 2⁴ = 138035587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (138035683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69017801 + 69017802.

It is an arithmetic number, because the mean of its divisors is an integer number (69017802).

Almost surely, 2^138035603 is an apocalyptic number.

138035603 is a deficient number, since it is larger than the sum of its proper divisors (1).

138035603 is an equidigital number, since it uses as much as digits as its factorization.

138035603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 138035603 is about 11748.8553910583. The cubic root of 138035603 is about 516.8093619505.

The spelling of 138035603 in words is "one hundred thirty-eight million, thirty-five thousand, six hundred three".