138303274 has 8 divisors (see below), whose sum is σ = 207523908. Its totient is φ = 69128640.

The previous prime is 138303199. The next prime is 138303283. The reversal of 138303274 is 472303831.

138303274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 121550625 + 16752649 = 11025^2 + 4093^2 .

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

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, 2607 + ... + 16834.

Almost surely, 2^138303274 is an apocalyptic number.

138303274 is a deficient number, since it is larger than the sum of its proper divisors (69220634).

138303274 is a wasteful number, since it uses less digits than its factorization.

138303274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23000.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 138303274 is about 11760.2412390223. The cubic root of 138303274 is about 517.1432022902.

The spelling of 138303274 in words is "one hundred thirty-eight million, three hundred three thousand, two hundred seventy-four".