138418127 has 4 divisors (see below), whose sum is σ = 139845216. Its totient is φ = 136991040.

The previous prime is 138418123. The next prime is 138418129. The reversal of 138418127 is 721814831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138418127 - 2² = 138418123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138418123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713399 + ... + 713592.

It is an arithmetic number, because the mean of its divisors is an integer number (34961304).

Almost surely, 2^138418127 is an apocalyptic number.

138418127 is a deficient number, since it is larger than the sum of its proper divisors (1427089).

138418127 is an equidigital number, since it uses as much as digits as its factorization.

138418127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427088.

The product of its digits is 10752, while the sum is 35.

The square root of 138418127 is about 11765.1233312703. The cubic root of 138418127 is about 517.2863153503.

The spelling of 138418127 in words is "one hundred thirty-eight million, four hundred eighteen thousand, one hundred twenty-seven".