138842603 has 8 divisors (see below), whose sum is σ = 140259600. Its totient is φ = 137433088.

The previous prime is 138842593. The next prime is 138842617. The reversal of 138842603 is 306248831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138842603 - 2¹⁰ = 138841579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138842663) 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 in 7 ways as a sum of consecutive naturals, for example, 40043 + ... + 43371.

It is an arithmetic number, because the mean of its divisors is an integer number (17532450).

Almost surely, 2^138842603 is an apocalyptic number.

138842603 is a deficient number, since it is larger than the sum of its proper divisors (1416997).

138842603 is a wasteful number, since it uses less digits than its factorization.

138842603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3741.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 138842603 is about 11783.1491121856. The cubic root of 138842603 is about 517.8145495264.

The spelling of 138842603 in words is "one hundred thirty-eight million, eight hundred forty-two thousand, six hundred three".