138032254 has 8 divisors (see below), whose sum is σ = 207461520. Its totient is φ = 68878416.

The previous prime is 138032233. The next prime is 138032263. The reversal of 138032254 is 452230831.

138032254 is digitally balanced in base 2, 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67599 + ... + 69610.

It is an arithmetic number, because the mean of its divisors is an integer number (25932690).

Almost surely, 2^138032254 is an apocalyptic number.

138032254 is a deficient number, since it is larger than the sum of its proper divisors (69429266).

138032254 is a wasteful number, since it uses less digits than its factorization.

138032254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137714.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 138032254 is about 11748.7128656717. The cubic root of 138032254 is about 516.8051823318.

The spelling of 138032254 in words is "one hundred thirty-eight million, thirty-two thousand, two hundred fifty-four".