113873 has 4 divisors (see below), whose sum is σ = 118848. Its totient is φ = 108900.
The previous prime is 113843. The next prime is 113891. The reversal of 113873 is 378311.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 378311 = 149 ⋅2539.
It is a cyclic number.
It is not a de Polignac number, because 113873 - 26 = 113809 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 4951 = 113873 / (1 + 1 + 3 + 8 + 7 + 3).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (113843) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2453 + ... + 2498.
It is an arithmetic number, because the mean of its divisors is an integer number (29712).
2113873 is an apocalyptic number.
It is an amenable number.
113873 is a deficient number, since it is larger than the sum of its proper divisors (4975).
113873 is an equidigital number, since it uses as much as digits as its factorization.
113873 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4974.
The product of its digits is 504, while the sum is 23.
The square root of 113873 is about 337.4507371454. The cubic root of 113873 is about 48.4700633619.
The spelling of 113873 in words is "one hundred thirteen thousand, eight hundred seventy-three".
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