3138532 has 12 divisors (see below), whose sum is σ = 5549740. Its totient is φ = 1552896.

The previous prime is 3138529. The next prime is 3138539. The reversal of 3138532 is 2358313.

It can be written as a sum of positive squares in 2 ways, for example, as 527076 + 2611456 = 726^2 + 1616^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3138497 and 3138506.

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, 3657 + ... + 4432.

Almost surely, 2^3138532 is an apocalyptic number.

It is an amenable number.

3138532 is a deficient number, since it is larger than the sum of its proper divisors (2411208).

3138532 is a wasteful number, since it uses less digits than its factorization.

3138532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8190 (or 8188 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 3138532 is about 1771.5902460784. The cubic root of 3138532 is about 146.4116113497.

The spelling of 3138532 in words is "three million, one hundred thirty-eight thousand, five hundred thirty-two".