113129 has 8 divisors (see below), whose sum is σ = 120960. Its totient is φ = 105616.

The previous prime is 113123. The next prime is 113131. The reversal of 113129 is 921311.

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 a de Polignac number, because none of the positive numbers 2^k-113129 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (113123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322 + ... + 1404.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2¹¹³¹²⁹ is an apocalyptic number.

It is an amenable number.

113129 is a deficient number, since it is larger than the sum of its proper divisors (7831).

113129 is an equidigital number, since it uses as much as digits as its factorization.

113129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159.

The product of its digits is 54, while the sum is 17.

The square root of 113129 is about 336.3465474774. The cubic root of 113129 is about 48.3642713801.

It can be divided in two parts, 113 and 129, that added together give a palindrome (242).

The spelling of 113129 in words is "one hundred thirteen thousand, one hundred twenty-nine".