138455103 has 8 divisors (see below), whose sum is σ = 184923648. Its totient is φ = 92144984.

The previous prime is 138455087. The next prime is 138455113. The reversal of 138455103 is 301554831.

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 138455103 - 2⁴ = 138455087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138455113) 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 in 7 ways as a sum of consecutive naturals, for example, 37551 + ... + 41072.

It is an arithmetic number, because the mean of its divisors is an integer number (23115456).

Almost surely, 2^138455103 is an apocalyptic number.

138455103 is a deficient number, since it is larger than the sum of its proper divisors (46468545).

138455103 is an equidigital number, since it uses as much as digits as its factorization.

138455103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79213.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 138455103 is about 11766.6946505805. The cubic root of 138455103 is about 517.3323726028.

The spelling of 138455103 in words is "one hundred thirty-eight million, four hundred fifty-five thousand, one hundred three".