138076807 has 8 divisors (see below), whose sum is σ = 154303632. Its totient is φ = 122462400.

The previous prime is 138076787. The next prime is 138076823. The reversal of 138076807 is 708670831.

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 138076807 - 2²³ = 129688199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138076807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138076867) 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, 152628 + ... + 153529.

It is an arithmetic number, because the mean of its divisors is an integer number (19287954).

Almost surely, 2^138076807 is an apocalyptic number.

138076807 is a deficient number, since it is larger than the sum of its proper divisors (16226825).

138076807 is a wasteful number, since it uses less digits than its factorization.

138076807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306209.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 138076807 is about 11750.6087927392. The cubic root of 138076807 is about 516.8607798311.

It can be divided in two parts, 1380 and 76807, that added together give a palindrome (78187).

The spelling of 138076807 in words is "one hundred thirty-eight million, seventy-six thousand, eight hundred seven".