138765741 has 8 divisors (see below), whose sum is σ = 185190240. Its totient is φ = 92425872.

The previous prime is 138765719. The next prime is 138765743. The reversal of 138765741 is 147567831.

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

It is not a de Polignac number, because 138765741 - 2²⁷ = 4548013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138765693 and 138765702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138765743) 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, 17226 + ... + 23963.

It is an arithmetic number, because the mean of its divisors is an integer number (23148780).

Almost surely, 2^138765741 is an apocalyptic number.

It is an amenable number.

138765741 is a deficient number, since it is larger than the sum of its proper divisors (46424499).

138765741 is a wasteful number, since it uses less digits than its factorization.

138765741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42315.

The product of its digits is 141120, while the sum is 42.

The square root of 138765741 is about 11779.8871386784. The cubic root of 138765741 is about 517.7189794165.

The spelling of 138765741 in words is "one hundred thirty-eight million, seven hundred sixty-five thousand, seven hundred forty-one".