138774107 has 2 divisors, whose sum is σ = 138774108. Its totient is φ = 138774106.

The previous prime is 138774079. The next prime is 138774121. The reversal of 138774107 is 701477831.

It is a strong prime.

It is an emirp because it is prime and its reverse (701477831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138774107 - 2⁸ = 138773851 is a prime.

It is not a weakly prime, because it can be changed into another prime (138774137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69387053 + 69387054.

It is an arithmetic number, because the mean of its divisors is an integer number (69387054).

Almost surely, 2^138774107 is an apocalyptic number.

138774107 is a deficient number, since it is larger than the sum of its proper divisors (1).

138774107 is an equidigital number, since it uses as much as digits as its factorization.

138774107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 138774107 is about 11780.2422301072. The cubic root of 138774107 is about 517.7293834012.

The spelling of 138774107 in words is "one hundred thirty-eight million, seven hundred seventy-four thousand, one hundred seven".