3138538 has 8 divisors (see below), whose sum is σ = 5069988. Its totient is φ = 1448544.

The previous prime is 3138529. The next prime is 3138539. The reversal of 3138538 is 8358313.

It can be written as a sum of positive squares in 2 ways, for example, as 3038049 + 100489 = 1743^2 + 317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 60331 + ... + 60382.

Almost surely, 2^3138538 is an apocalyptic number.

3138538 is a deficient number, since it is larger than the sum of its proper divisors (1931450).

3138538 is a wasteful number, since it uses less digits than its factorization.

3138538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120728.

The product of its digits is 8640, while the sum is 31.

The square root of 3138538 is about 1771.5919394714. The cubic root of 3138538 is about 146.4117046491.

The spelling of 3138538 in words is "three million, one hundred thirty-eight thousand, five hundred thirty-eight".