138277803 has 8 divisors (see below), whose sum is σ = 184483728. Its totient is φ = 92128544.

The previous prime is 138277759. The next prime is 138277823. The reversal of 138277803 is 308772831.

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 138277803 - 2¹⁸ = 138015659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138277823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8100 + ... + 18497.

It is an arithmetic number, because the mean of its divisors is an integer number (23060466).

Almost surely, 2^138277803 is an apocalyptic number.

138277803 is a deficient number, since it is larger than the sum of its proper divisors (46205925).

138277803 is a wasteful number, since it uses less digits than its factorization.

138277803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28333.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 138277803 is about 11759.1582606920. The cubic root of 138277803 is about 517.1114533113. Note that the first 3 decimals are identical.

The spelling of 138277803 in words is "one hundred thirty-eight million, two hundred seventy-seven thousand, eight hundred three".