112671405 has 80 divisors (see below), whose sum is σ = 251881344. Its totient is φ = 46811520.

The previous prime is 112671389. The next prime is 112671413. The reversal of 112671405 is 504176211.

It is a happy number.

It is not a de Polignac number, because 112671405 - 2⁴ = 112671389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 79 ways as a sum of consecutive naturals, for example, 29379 + ... + 32991.

Almost surely, 2^112671405 is an apocalyptic number.

112671405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

112671405 is an abundant number, since it is smaller than the sum of its proper divisors (139209939).

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

112671405 is a wasteful number, since it uses less digits than its factorization.

112671405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648 (or 3639 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 112671405 is about 10614.6787516156. The cubic root of 112671405 is about 482.9897378322.

The spelling of 112671405 in words is "one hundred twelve million, six hundred seventy-one thousand, four hundred five".