138371237105 has 16 divisors (see below), whose sum is σ = 170545865040. Its totient is φ = 107697180672.

The previous prime is 138371237057. The next prime is 138371237111. The reversal of 138371237105 is 501732173831.

It can be written as a sum of positive squares in 8 ways, for example, as 1572598336 + 136798638769 = 39656^2 + 369863^2 .

It is a cyclic number.

It is not a de Polignac number, because 138371237105 - 2⁶ = 138371237041 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4227041 + ... + 4259649.

It is an arithmetic number, because the mean of its divisors is an integer number (10659116565).

Almost surely, 2^138371237105 is an apocalyptic number.

It is an amenable number.

138371237105 is a deficient number, since it is larger than the sum of its proper divisors (32174627935).

138371237105 is a wasteful number, since it uses less digits than its factorization.

138371237105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55588.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 138371237105 in words is "one hundred thirty-eight billion, three hundred seventy-one million, two hundred thirty-seven thousand, one hundred five".