3168632138 has 12 divisors (see below), whose sum is σ = 5528939922. Its totient is φ = 1357985160.

The previous prime is 3168632029. The next prime is 3168632149. The reversal of 3168632138 is 8312368613.

It can be written as a sum of positive squares in only one way, i.e., 3168226369 + 405769 = 56287^2 + 637^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3168632095 and 3168632104.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16166393 + ... + 16166588.

Almost surely, 2^3168632138 is an apocalyptic number.

3168632138 is a deficient number, since it is larger than the sum of its proper divisors (2360307784).

3168632138 is a wasteful number, since it uses less digits than its factorization.

3168632138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32332997 (or 32332990 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 3168632138 is about 56290.6043492162. The cubic root of 3168632138 is about 1468.7817722585.

The spelling of 3168632138 in words is "three billion, one hundred sixty-eight million, six hundred thirty-two thousand, one hundred thirty-eight".