112138308 has 18 divisors (see below), whose sum is σ = 283460814. Its totient is φ = 37379424.

The previous prime is 112138303. The next prime is 112138319. The reversal of 112138308 is 803831211.

It can be written as a sum of positive squares in only one way, i.e., 81866304 + 30272004 = 9048^2 + 5502^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×112138308² = 25150000242205728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (112138303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1557441 + ... + 1557512.

It is an arithmetic number, because the mean of its divisors is an integer number (15747823).

Almost surely, 2^112138308 is an apocalyptic number.

112138308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

112138308 is an abundant number, since it is smaller than the sum of its proper divisors (171322506).

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

112138308 is a wasteful number, since it uses less digits than its factorization.

112138308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114963 (or 3114958 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 112138308 is about 10589.5376669617. The cubic root of 112138308 is about 482.2267890472.

Adding to 112138308 its reverse (803831211), we get a palindrome (915969519).

The spelling of 112138308 in words is "one hundred twelve million, one hundred thirty-eight thousand, three hundred eight".