138260323 has 16 divisors (see below), whose sum is σ = 145885824. Its totient is φ = 130890240.

The previous prime is 138260293. The next prime is 138260327. The reversal of 138260323 is 323062831.

It is a cyclic number.

It is not a de Polignac number, because 138260323 - 2⁹ = 138259811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138260291 and 138260300.

It is not an unprimeable number, because it can be changed into a prime (138260327) 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, 302311 + ... + 302767.

It is an arithmetic number, because the mean of its divisors is an integer number (9117864).

Almost surely, 2^138260323 is an apocalyptic number.

138260323 is a deficient number, since it is larger than the sum of its proper divisors (7625501).

138260323 is a wasteful number, since it uses less digits than its factorization.

138260323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 138260323 is about 11758.4149867233. The cubic root of 138260323 is about 517.0896626625.

The spelling of 138260323 in words is "one hundred thirty-eight million, two hundred sixty thousand, three hundred twenty-three".