138102677 has 2 divisors, whose sum is σ = 138102678. Its totient is φ = 138102676.

The previous prime is 138102647. The next prime is 138102691. The reversal of 138102677 is 776201831.

138102677 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., 136562596 + 1540081 = 11686^2 + 1241^2 .

It is an emirp because it is prime and its reverse (776201831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138102677 - 2¹⁸ = 137840533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138102607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69051338 + 69051339.

It is an arithmetic number, because the mean of its divisors is an integer number (69051339).

Almost surely, 2^138102677 is an apocalyptic number.

It is an amenable number.

138102677 is a deficient number, since it is larger than the sum of its proper divisors (1).

138102677 is an equidigital number, since it uses as much as digits as its factorization.

138102677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 138102677 is about 11751.7095352123. The cubic root of 138102677 is about 516.8930574059.

The spelling of 138102677 in words is "one hundred thirty-eight million, one hundred two thousand, six hundred seventy-seven".