138477036 has 24 divisors (see below), whose sum is σ = 342120240. Its totient is φ = 43443712.

The previous prime is 138477029. The next prime is 138477041. The reversal of 138477036 is 630774831.

138477036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 138476985 and 138477003.

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, 339201 + ... + 339608.

It is an arithmetic number, because the mean of its divisors is an integer number (14255010).

Almost surely, 2^138477036 is an apocalyptic number.

It is an amenable number.

138477036 is an abundant number, since it is smaller than the sum of its proper divisors (203643204).

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

138477036 is a wasteful number, since it uses less digits than its factorization.

138477036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678833 (or 678831 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 138477036 is about 11767.6266086242. The cubic root of 138477036 is about 517.3596884416.

The spelling of 138477036 in words is "one hundred thirty-eight million, four hundred seventy-seven thousand, thirty-six".