3081138 has 16 divisors (see below), whose sum is σ = 6329280. Its totient is φ = 999216.

The previous prime is 3081137. The next prime is 3081139. The reversal of 3081138 is 8311803.

3081138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3081137) and next prime (3081139).

It is a super-2 number, since 2×3081138² = 18986822750088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3081137) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6718 + ... + 7161.

It is an arithmetic number, because the mean of its divisors is an integer number (395580).

Almost surely, 2^3081138 is an apocalyptic number.

3081138 is an abundant number, since it is smaller than the sum of its proper divisors (3248142).

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

3081138 is a wasteful number, since it uses less digits than its factorization.

3081138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13921.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 3081138 is about 1755.3170653759. The cubic root of 3081138 is about 145.5136440483.

The spelling of 3081138 in words is "three million, eighty-one thousand, one hundred thirty-eight".