138583811 has 2 divisors, whose sum is σ = 138583812. Its totient is φ = 138583810.

The previous prime is 138583793. The next prime is 138583829. The reversal of 138583811 is 118385831.

It is a balanced prime because it is at equal distance from previous prime (138583793) and next prime (138583829).

It is a cyclic number.

It is not a de Polignac number, because 138583811 - 2⁶ = 138583747 is a prime.

It is a weakly prime.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69291905 + 69291906.

It is an arithmetic number, because the mean of its divisors is an integer number (69291906).

Almost surely, 2^138583811 is an apocalyptic number.

138583811 is a deficient number, since it is larger than the sum of its proper divisors (1).

138583811 is an equidigital number, since it uses as much as digits as its factorization.

138583811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 38.

The square root of 138583811 is about 11772.1625455988. The cubic root of 138583811 is about 517.4926271830.

The spelling of 138583811 in words is "one hundred thirty-eight million, five hundred eighty-three thousand, eight hundred eleven".