138612701 has 2 divisors, whose sum is σ = 138612702. Its totient is φ = 138612700.

The previous prime is 138612673. The next prime is 138612707. The reversal of 138612701 is 107216831.

138612701 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 can be written as a sum of positive squares in only one way, i.e., 129163225 + 9449476 = 11365^2 + 3074^2 .

It is an emirp because it is prime and its reverse (107216831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138612701 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138612707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69306350 + 69306351.

It is an arithmetic number, because the mean of its divisors is an integer number (69306351).

Almost surely, 2^138612701 is an apocalyptic number.

It is an amenable number.

138612701 is a deficient number, since it is larger than the sum of its proper divisors (1).

138612701 is an equidigital number, since it uses as much as digits as its factorization.

138612701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 138612701 is about 11773.3895289335. The cubic root of 138612701 is about 517.5285845413.

The spelling of 138612701 in words is "one hundred thirty-eight million, six hundred twelve thousand, seven hundred one".