113187 has 8 divisors (see below), whose sum is σ = 156240. Its totient is φ = 72800.

The previous prime is 113177. The next prime is 113189. The reversal of 113187 is 781311.

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 113187 - 2⁴ = 113171 is a prime.

It is a super-2 number, since 2×113187² = 25622593938, which contains 22 as substring.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 1131 and 87 contains 113187 itself.

It is not an unprimeable number, because it can be changed into a prime (113189) 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, 564 + ... + 737.

It is an arithmetic number, because the mean of its divisors is an integer number (19530).

2¹¹³¹⁸⁷ is an apocalyptic number.

113187 is a deficient number, since it is larger than the sum of its proper divisors (43053).

113187 is a wasteful number, since it uses less digits than its factorization.

113187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333.

The product of its digits is 168, while the sum is 21.

The square root of 113187 is about 336.4327570258. The cubic root of 113187 is about 48.3725352456.

Adding to 113187 its reverse (781311), we get a palindrome (894498).

It can be divided in two parts, 11318 and 7, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 113187 in words is "one hundred thirteen thousand, one hundred eighty-seven".