138503229 has 8 divisors (see below), whose sum is σ = 184730112. Its totient is φ = 92305920.

The previous prime is 138503221. The next prime is 138503243. The reversal of 138503229 is 922305831.

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

It is not a de Polignac number, because 138503229 - 2³ = 138503221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138503229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138503221) 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 7 ways as a sum of consecutive naturals, for example, 8292 + ... + 18594.

It is an arithmetic number, because the mean of its divisors is an integer number (23091264).

Almost surely, 2^138503229 is an apocalyptic number.

It is an amenable number.

138503229 is a deficient number, since it is larger than the sum of its proper divisors (46226883).

138503229 is a wasteful number, since it uses less digits than its factorization.

138503229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14787.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 138503229 is about 11768.7394822045. The cubic root of 138503229 is about 517.3923059990.

The spelling of 138503229 in words is "one hundred thirty-eight million, five hundred three thousand, two hundred twenty-nine".