138693034 has 8 divisors (see below), whose sum is σ = 208101060. Its totient is φ = 69326016.

The previous prime is 138693031. The next prime is 138693091. The reversal of 138693034 is 430396831.

It can be written as a sum of positive squares in 2 ways, for example, as 133471809 + 5221225 = 11553^2 + 2285^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 138692984 and 138693002.

It is not an unprimeable number, because it can be changed into a prime (138693031) 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, 432 + ... + 16660.

Almost surely, 2^138693034 is an apocalyptic number.

138693034 is a deficient number, since it is larger than the sum of its proper divisors (69408026).

138693034 is a wasteful number, since it uses less digits than its factorization.

138693034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20504.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 138693034 is about 11776.8006691121. The cubic root of 138693034 is about 517.6285431419.

The spelling of 138693034 in words is "one hundred thirty-eight million, six hundred ninety-three thousand, thirty-four".