138069188145 has 64 divisors (see below), whose sum is σ = 280571328000. Its totient is φ = 63106138368.

The previous prime is 138069188137. The next prime is 138069188161. The reversal of 138069188145 is 541881960831.

It is a happy number.

It is not a de Polignac number, because 138069188145 - 2³ = 138069188137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138069188091 and 138069188100.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7805371 + ... + 7823039.

It is an arithmetic number, because the mean of its divisors is an integer number (4383927000).

Almost surely, 2^138069188145 is an apocalyptic number.

138069188145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138069188145 is an abundant number, since it is smaller than the sum of its proper divisors (142502139855).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138069188145 is a wasteful number, since it uses less digits than its factorization.

138069188145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25959 (or 25953 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 138069188145 in words is "one hundred thirty-eight billion, sixty-nine million, one hundred eighty-eight thousand, one hundred forty-five".