138073033 has 6 divisors (see below), whose sum is σ = 160615626. Its totient is φ = 118348272.

The previous prime is 138072983. The next prime is 138073049. The reversal of 138073033 is 330370831.

138073033 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 only one way, i.e., 134861769 + 3211264 = 11613^2 + 1792^2 .

It is not a de Polignac number, because 138073033 - 2²¹ = 135975881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138072992 and 138073010.

It is not an unprimeable number, because it can be changed into a prime (138073063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1408860 + ... + 1408957.

It is an arithmetic number, because the mean of its divisors is an integer number (26769271).

Almost surely, 2^138073033 is an apocalyptic number.

It is an amenable number.

138073033 is a deficient number, since it is larger than the sum of its proper divisors (22542593).

138073033 is an equidigital number, since it uses as much as digits as its factorization.

138073033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817831 (or 2817824 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 138073033 is about 11750.4482042176. The cubic root of 138073033 is about 516.8560707362.

The spelling of 138073033 in words is "one hundred thirty-eight million, seventy-three thousand, thirty-three".