138773107 has 4 divisors (see below), whose sum is σ = 151388856. Its totient is φ = 126157360.

The previous prime is 138773101. The next prime is 138773111. The reversal of 138773107 is 701377831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138773107 - 2¹⁵ = 138740339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138773101) 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 3 ways as a sum of consecutive naturals, for example, 6307858 + ... + 6307879.

It is an arithmetic number, because the mean of its divisors is an integer number (37847214).

Almost surely, 2^138773107 is an apocalyptic number.

138773107 is a deficient number, since it is larger than the sum of its proper divisors (12615749).

138773107 is a wasteful number, since it uses less digits than its factorization.

138773107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12615748.

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 138773107 is about 11780.1997860817. The cubic root of 138773107 is about 517.7281398199.

The spelling of 138773107 in words is "one hundred thirty-eight million, seven hundred seventy-three thousand, one hundred seven".