3138138 has 24 divisors (see below), whose sum is σ = 6833268. Its totient is φ = 1040832.

The previous prime is 3138137. The next prime is 3138167. The reversal of 3138138 is 8318313.

It can be written as a sum of positive squares in 2 ways, for example, as 2152089 + 986049 = 1467^2 + 993^2 .

It is not an unprimeable number, because it can be changed into a prime (3138131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5356 + ... + 5912.

Almost surely, 2^3138138 is an apocalyptic number.

3138138 is an abundant number, since it is smaller than the sum of its proper divisors (3695130).

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

3138138 is a wasteful number, since it uses less digits than its factorization.

3138138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 875 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 3138138 is about 1771.4790430598. The cubic root of 3138138 is about 146.4054844313.

It can be divided in two parts, 3 and 138138, that multiplied together give a palindrome (414414).

The spelling of 3138138 in words is "three million, one hundred thirty-eight thousand, one hundred thirty-eight".