138073311 has 6 divisors (see below), whose sum is σ = 199439240. Its totient is φ = 92048868.

The previous prime is 138073291. The next prime is 138073333. The reversal of 138073311 is 113370831.

It is not a de Polignac number, because 138073311 - 2⁵ = 138073279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138073211) 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, 7670731 + ... + 7670748.

Almost surely, 2^138073311 is an apocalyptic number.

138073311 is a deficient number, since it is larger than the sum of its proper divisors (61365929).

138073311 is a wasteful number, since it uses less digits than its factorization.

138073311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15341485 (or 15341482 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 138073311 is about 11750.4600335476. The cubic root of 138073311 is about 516.8564176200.

It can be divided in two parts, 138073 and 311, that added together give a square (138384 = 372²).

The spelling of 138073311 in words is "one hundred thirty-eight million, seventy-three thousand, three hundred eleven".