138403105534 has 16 divisors (see below), whose sum is σ = 208453344480. Its totient is φ = 68918847840.

The previous prime is 138403105507. The next prime is 138403105543. The reversal of 138403105534 is 435501304831.

It is a junction number, because it is equal to n+sod(n) for n = 138403105493 and 138403105502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1455472 + ... + 1547644.

It is an arithmetic number, because the mean of its divisors is an integer number (13028334030).

Almost surely, 2^138403105534 is an apocalyptic number.

138403105534 is a deficient number, since it is larger than the sum of its proper divisors (70050238946).

138403105534 is a wasteful number, since it uses less digits than its factorization.

138403105534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95235.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 138403105534 in words is "one hundred thirty-eight billion, four hundred three million, one hundred five thousand, five hundred thirty-four".