138480503 has 8 divisors (see below), whose sum is σ = 163368960. Its totient is φ = 114868440.

The previous prime is 138480497. The next prime is 138480509. The reversal of 138480503 is 305084831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (138480497) and next prime (138480509).

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 138480503 - 2¹⁶ = 138414967 is a prime.

It is a super-2 number, since 2×138480503² = 38353699422266018, which contains 22 as substring.

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 138480503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138480509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318863 + ... + 319296.

It is an arithmetic number, because the mean of its divisors is an integer number (20421120).

Almost surely, 2^138480503 is an apocalyptic number.

138480503 is a deficient number, since it is larger than the sum of its proper divisors (24888457).

138480503 is an equidigital number, since it uses as much as digits as its factorization.

138480503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638197.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 138480503 is about 11767.7739186305. The cubic root of 138480503 is about 517.3640060554.

The spelling of 138480503 in words is "one hundred thirty-eight million, four hundred eighty thousand, five hundred three".