138758603 has 2 divisors, whose sum is σ = 138758604. Its totient is φ = 138758602.

The previous prime is 138758569. The next prime is 138758651. The reversal of 138758603 is 306857831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138758603 - 2¹⁰ = 138757579 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (138758003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69379301 + 69379302.

It is an arithmetic number, because the mean of its divisors is an integer number (69379302).

Almost surely, 2^138758603 is an apocalyptic number.

138758603 is a deficient number, since it is larger than the sum of its proper divisors (1).

138758603 is an equidigital number, since it uses as much as digits as its factorization.

138758603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 138758603 is about 11779.5841607418. The cubic root of 138758603 is about 517.7101022459.

The spelling of 138758603 in words is "one hundred thirty-eight million, seven hundred fifty-eight thousand, six hundred three".