138707803 has 4 divisors (see below), whose sum is σ = 149377648. Its totient is φ = 128037960.

The previous prime is 138707753. The next prime is 138707843. The reversal of 138707803 is 308707831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308707831 = 313 ⋅986287.

It is a cyclic number.

It is not a de Polignac number, because 138707803 - 2¹⁷ = 138576731 is a prime.

It is a super-2 number, since 2×138707803² = 38479709226173618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138707843) 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, 5334903 + ... + 5334928.

It is an arithmetic number, because the mean of its divisors is an integer number (37344412).

Almost surely, 2^138707803 is an apocalyptic number.

138707803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

138707803 is a deficient number, since it is larger than the sum of its proper divisors (10669845).

138707803 is a wasteful number, since it uses less digits than its factorization.

138707803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10669844.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 138707803 is about 11777.4276902896. The cubic root of 138707803 is about 517.6469160536.

The spelling of 138707803 in words is "one hundred thirty-eight million, seven hundred seven thousand, eight hundred three".