112131666 has 24 divisors (see below), whose sum is σ = 243545484. Its totient is φ = 37285920.

The previous prime is 112131653. The next prime is 112131689. The reversal of 112131666 is 666131211.

It can be written as a sum of positive squares in 2 ways, for example, as 93026025 + 19105641 = 9645^2 + 4371^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180 + ... + 14976.

Almost surely, 2^112131666 is an apocalyptic number.

112131666 is an abundant number, since it is smaller than the sum of its proper divisors (131413818).

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

112131666 is a wasteful number, since it uses less digits than its factorization.

112131666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15226 (or 15223 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 112131666 is about 10589.2240508925. The cubic root of 112131666 is about 482.2172680262.

Adding to 112131666 its reverse (666131211), we get a palindrome (778262877).

The spelling of 112131666 in words is "one hundred twelve million, one hundred thirty-one thousand, six hundred sixty-six".