138153203 has 8 divisors (see below), whose sum is σ = 152640288. Its totient is φ = 124372864.

The previous prime is 138153173. The next prime is 138153217. The reversal of 138153203 is 302351831.

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 138153203 - 2⁸ = 138152947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138153283) 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 7 ways as a sum of consecutive naturals, for example, 176276 + ... + 177057.

It is an arithmetic number, because the mean of its divisors is an integer number (19080036).

Almost surely, 2^138153203 is an apocalyptic number.

138153203 is a deficient number, since it is larger than the sum of its proper divisors (14487085).

138153203 is a wasteful number, since it uses less digits than its factorization.

138153203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353373.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 138153203 is about 11753.8590684081. The cubic root of 138153203 is about 516.9560862451.

It can be divided in two parts, 13815320 and 3, that multiplied together give a triangular number (41445960 = T₉₁₀₄).

The spelling of 138153203 in words is "one hundred thirty-eight million, one hundred fifty-three thousand, two hundred three".