3112806138 has 32 divisors (see below), whose sum is σ = 7057377600. Its totient is φ = 907376256.

The previous prime is 3112806133. The next prime is 3112806143. The reversal of 3112806138 is 8316082113.

It is an interprime number because it is at equal distance from previous prime (3112806133) and next prime (3112806143).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3112806099 and 3112806108.

It is not an unprimeable number, because it can be changed into a prime (3112806133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1048723 + ... + 1051686.

It is an arithmetic number, because the mean of its divisors is an integer number (220543050).

Almost surely, 2^3112806138 is an apocalyptic number.

3112806138 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3112806138 is an abundant number, since it is smaller than the sum of its proper divisors (3944571462).

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

3112806138 is a wasteful number, since it uses less digits than its factorization.

3112806138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100446.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 3112806138 is about 55792.5276179526. The cubic root of 3112806138 is about 1460.1047866869.

The spelling of 3112806138 in words is "three billion, one hundred twelve million, eight hundred six thousand, one hundred thirty-eight".