112491 has 12 divisors (see below), whose sum is σ = 168480. Its totient is φ = 72240.

The previous prime is 112481. The next prime is 112501. The reversal of 112491 is 194211.

It is an interprime number because it is at equal distance from previous prime (112481) and next prime (112501).

It is not a de Polignac number, because 112491 - 2⁵ = 112459 is a prime.

112491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (112481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46 + ... + 476.

It is an arithmetic number, because the mean of its divisors is an integer number (14040).

2¹¹²⁴⁹¹ is an apocalyptic number.

112491 is a deficient number, since it is larger than the sum of its proper divisors (55989).

112491 is a wasteful number, since it uses less digits than its factorization.

112491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 463 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 112491 is about 335.3967799488. The cubic root of 112491 is about 48.2731818768.

The spelling of 112491 in words is "one hundred twelve thousand, four hundred ninety-one".