138231301 has 12 divisors (see below), whose sum is σ = 158140612. Its totient is φ = 120089088.

The previous prime is 138231239. The next prime is 138231319. The reversal of 138231301 is 103132831.

It can be written as a sum of positive squares in 6 ways, for example, as 3648100 + 134583201 = 1910^2 + 11601^2 .

It is not a de Polignac number, because 138231301 - 2⁹ = 138230789 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 (138231601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14640 + ... + 22153.

Almost surely, 2^138231301 is an apocalyptic number.

It is an amenable number.

138231301 is a deficient number, since it is larger than the sum of its proper divisors (19909311).

138231301 is a wasteful number, since it uses less digits than its factorization.

138231301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36840 (or 36823 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 138231301 is about 11757.1808270520. The cubic root of 138231301 is about 517.0534796467.

The spelling of 138231301 in words is "one hundred thirty-eight million, two hundred thirty-one thousand, three hundred one".