138653204 has 24 divisors (see below), whose sum is σ = 252973056. Its totient is φ = 66420000.

The previous prime is 138653201. The next prime is 138653213. The reversal of 138653204 is 402356831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138653201) 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, 6989 + ... + 18059.

It is an arithmetic number, because the mean of its divisors is an integer number (10540544).

Almost surely, 2^138653204 is an apocalyptic number.

It is an amenable number.

138653204 is a deficient number, since it is larger than the sum of its proper divisors (114319852).

138653204 is a wasteful number, since it uses less digits than its factorization.

138653204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11207 (or 11205 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 138653204 is about 11775.1095111680. The cubic root of 138653204 is about 517.5789873755.

The spelling of 138653204 in words is "one hundred thirty-eight million, six hundred fifty-three thousand, two hundred four".