138701311 has 16 divisors (see below), whose sum is σ = 170272000. Its totient is φ = 112624344.

The previous prime is 138701279. The next prime is 138701333. The reversal of 138701311 is 113107831.

It is not a de Polignac number, because 138701311 - 2⁵ = 138701279 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 (138701341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4125 + ... + 17158.

It is an arithmetic number, because the mean of its divisors is an integer number (10642000).

Almost surely, 2^138701311 is an apocalyptic number.

138701311 is a deficient number, since it is larger than the sum of its proper divisors (31570689).

138701311 is an equidigital number, since it uses as much as digits as its factorization.

138701311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21323 (or 21309 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 138701311 is about 11777.1520750986. The cubic root of 138701311 is about 517.6388400451.

The spelling of 138701311 in words is "one hundred thirty-eight million, seven hundred one thousand, three hundred eleven".