3138516 has 18 divisors (see below), whose sum is σ = 7933562. Its totient is φ = 1046160.

The previous prime is 3138503. The next prime is 3138521. The reversal of 3138516 is 6158313.

It can be written as a sum of positive squares in only one way, i.e., 3048516 + 90000 = 1746^2 + 300^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 3138516.

It is a congruent number.

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, 43555 + ... + 43626.

Almost surely, 2^3138516 is an apocalyptic number.

3138516 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3138516 is an abundant number, since it is smaller than the sum of its proper divisors (4795046).

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

3138516 is a wasteful number, since it uses less digits than its factorization.

3138516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87191 (or 87186 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 3138516 is about 1771.5857303557. The cubic root of 3138516 is about 146.4113625509.

The spelling of 3138516 in words is "three million, one hundred thirty-eight thousand, five hundred sixteen".