138356011 has 2 divisors, whose sum is σ = 138356012. Its totient is φ = 138356010.

The previous prime is 138355981. The next prime is 138356021. The reversal of 138356011 is 110653831.

138356011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138356011 - 2¹⁹ = 137831723 is a prime.

It is not a weakly prime, because it can be changed into another prime (138356021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69178005 + 69178006.

It is an arithmetic number, because the mean of its divisors is an integer number (69178006).

Almost surely, 2^138356011 is an apocalyptic number.

138356011 is a deficient number, since it is larger than the sum of its proper divisors (1).

138356011 is an equidigital number, since it uses as much as digits as its factorization.

138356011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 138356011 is about 11762.4831987128. The cubic root of 138356011 is about 517.2089252832.

The spelling of 138356011 in words is "one hundred thirty-eight million, three hundred fifty-six thousand, eleven".