138301223 has 2 divisors, whose sum is σ = 138301224. Its totient is φ = 138301222.

The previous prime is 138301211. The next prime is 138301237. The reversal of 138301223 is 322103831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138301223 - 2²² = 134106919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138301253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69150611 + 69150612.

It is an arithmetic number, because the mean of its divisors is an integer number (69150612).

Almost surely, 2^138301223 is an apocalyptic number.

138301223 is a deficient number, since it is larger than the sum of its proper divisors (1).

138301223 is an equidigital number, since it uses as much as digits as its factorization.

138301223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 138301223 is about 11760.1540381068. The cubic root of 138301223 is about 517.1406459132.

The spelling of 138301223 in words is "one hundred thirty-eight million, three hundred one thousand, two hundred twenty-three".