138156835148 has 6 divisors (see below), whose sum is σ = 241774461516. Its totient is φ = 69078417572.

The previous prime is 138156835109. The next prime is 138156835177. The reversal of 138156835148 is 841538651831.

It is a super-2 number, since 2×138156835148² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138156835148.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17269604390 + ... + 17269604397.

It is an arithmetic number, because the mean of its divisors is an integer number (40295743586).

Almost surely, 2^138156835148 is an apocalyptic number.

It is an amenable number.

138156835148 is a deficient number, since it is larger than the sum of its proper divisors (103617626368).

138156835148 is a wasteful number, since it uses less digits than its factorization.

138156835148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34539208791 (or 34539208789 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 53.

The spelling of 138156835148 in words is "one hundred thirty-eight billion, one hundred fifty-six million, eight hundred thirty-five thousand, one hundred forty-eight".