138827323 has 4 divisors (see below), whose sum is σ = 139759200. Its totient is φ = 137895448.

The previous prime is 138827317. The next prime is 138827363. The reversal of 138827323 is 323728831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323728831 = 71 ⋅4559561.

It is a cyclic number.

It is not a de Polignac number, because 138827323 - 2⁵ = 138827291 is a prime.

It is a super-2 number, since 2×138827323² = 38546051222692658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138827363) 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 3 ways as a sum of consecutive naturals, for example, 465715 + ... + 466012.

It is an arithmetic number, because the mean of its divisors is an integer number (34939800).

Almost surely, 2^138827323 is an apocalyptic number.

138827323 is a deficient number, since it is larger than the sum of its proper divisors (931877).

138827323 is an equidigital number, since it uses as much as digits as its factorization.

138827323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931876.

The product of its digits is 48384, while the sum is 37.

The square root of 138827323 is about 11782.5007107999. The cubic root of 138827323 is about 517.7955532039.

The spelling of 138827323 in words is "one hundred thirty-eight million, eight hundred twenty-seven thousand, three hundred twenty-three".