112129491 has 8 divisors (see below), whose sum is σ = 149832144. Its totient is φ = 74589920.

The previous prime is 112129487. The next prime is 112129513. The reversal of 112129491 is 194921211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112129491 - 2² = 112129487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112129421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39156 + ... + 41921.

It is an arithmetic number, because the mean of its divisors is an integer number (18729018).

Almost surely, 2^112129491 is an apocalyptic number.

112129491 is a deficient number, since it is larger than the sum of its proper divisors (37702653).

112129491 is an equidigital number, since it uses as much as digits as its factorization.

112129491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81541.

The product of its digits is 1296, while the sum is 30.

The square root of 112129491 is about 10589.1213516514. The cubic root of 112129491 is about 482.2141501756.

The spelling of 112129491 in words is "one hundred twelve million, one hundred twenty-nine thousand, four hundred ninety-one".