138204733 has 8 divisors (see below), whose sum is σ = 140199680. Its totient is φ = 136216080.

The previous prime is 138204721. The next prime is 138204739. The reversal of 138204733 is 337402831.

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 138204733 - 2⁹ = 138204221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138204695 and 138204704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138204739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58648 + ... + 60958.

It is an arithmetic number, because the mean of its divisors is an integer number (17524960).

Almost surely, 2^138204733 is an apocalyptic number.

It is an amenable number.

138204733 is a deficient number, since it is larger than the sum of its proper divisors (1994947).

138204733 is an equidigital number, since it uses as much as digits as its factorization.

138204733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147.

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

The square root of 138204733 is about 11756.0509100633. The cubic root of 138204733 is about 517.0203517012.

The spelling of 138204733 in words is "one hundred thirty-eight million, two hundred four thousand, seven hundred thirty-three".