3138536 has 16 divisors (see below), whose sum is σ = 5926500. Its totient is φ = 1558144.

The previous prime is 3138529. The next prime is 3138539. The reversal of 3138536 is 6358313.

It can be written as a sum of positive squares in 2 ways, for example, as 2656900 + 481636 = 1630^2 + 694^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3138499 and 3138508.

It is not an unprimeable number, because it can be changed into a prime (3138539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125 + ... + 2508.

Almost surely, 2^3138536 is an apocalyptic number.

It is an amenable number.

3138536 is a deficient number, since it is larger than the sum of its proper divisors (2787964).

3138536 is a wasteful number, since it uses less digits than its factorization.

3138536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788 (or 2784 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 3138536 is about 1771.5913750072. The cubic root of 3138536 is about 146.4116735493.

The spelling of 3138536 in words is "three million, one hundred thirty-eight thousand, five hundred thirty-six".