138603454 has 8 divisors (see below), whose sum is σ = 226805688. Its totient is φ = 63001560.

The previous prime is 138603389. The next prime is 138603457. The reversal of 138603454 is 454306831.

It is a happy number.

138603454 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138603457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3150057 + ... + 3150100.

It is an arithmetic number, because the mean of its divisors is an integer number (28350711).

Almost surely, 2^138603454 is an apocalyptic number.

138603454 is a deficient number, since it is larger than the sum of its proper divisors (88202234).

138603454 is a wasteful number, since it uses less digits than its factorization.

138603454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6300170.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 138603454 is about 11772.9968147452. The cubic root of 138603454 is about 517.5170759922.

The spelling of 138603454 in words is "one hundred thirty-eight million, six hundred three thousand, four hundred fifty-four".