3138818 has 8 divisors (see below), whose sum is σ = 4723212. Its totient is φ = 1564416.

The previous prime is 3138809. The next prime is 3138847. The reversal of 3138818 is 8188313.

3138818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2798929 + 339889 = 1673^2 + 583^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1655 + ... + 3002.

Almost surely, 2^3138818 is an apocalyptic number.

3138818 is a deficient number, since it is larger than the sum of its proper divisors (1584394).

3138818 is a wasteful number, since it uses less digits than its factorization.

3138818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4996.

The product of its digits is 4608, while the sum is 32.

The square root of 3138818 is about 1771.6709626790. The cubic root of 3138818 is about 146.4160584871.

The spelling of 3138818 in words is "three million, one hundred thirty-eight thousand, eight hundred eighteen".