138776504 has 16 divisors (see below), whose sum is σ = 263771520. Its totient is φ = 68437440.

The previous prime is 138776489. The next prime is 138776507. The reversal of 138776504 is 405677831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138776507) 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 3 ways as a sum of consecutive naturals, for example, 118232 + ... + 119399.

It is an arithmetic number, because the mean of its divisors is an integer number (16485720).

Almost surely, 2^138776504 is an apocalyptic number.

It is an amenable number.

138776504 is a deficient number, since it is larger than the sum of its proper divisors (124995016).

138776504 is a wasteful number, since it uses less digits than its factorization.

138776504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237710 (or 237706 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 138776504 is about 11780.3439678135. The cubic root of 138776504 is about 517.7323642411.

The spelling of 138776504 in words is "one hundred thirty-eight million, seven hundred seventy-six thousand, five hundred four".