138084061 has 2 divisors, whose sum is σ = 138084062. Its totient is φ = 138084060.

The previous prime is 138084049. The next prime is 138084101. The reversal of 138084061 is 160480831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96236100 + 41847961 = 9810^2 + 6469^2 .

It is a cyclic number.

It is not a de Polignac number, because 138084061 - 2⁹ = 138083549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138084461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69042030 + 69042031.

It is an arithmetic number, because the mean of its divisors is an integer number (69042031).

Almost surely, 2^138084061 is an apocalyptic number.

It is an amenable number.

138084061 is a deficient number, since it is larger than the sum of its proper divisors (1).

138084061 is an equidigital number, since it uses as much as digits as its factorization.

138084061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 138084061 is about 11750.9174535438. The cubic root of 138084061 is about 516.8698309347.

The spelling of 138084061 in words is "one hundred thirty-eight million, eighty-four thousand, sixty-one".