113649 has 8 divisors (see below), whose sum is σ = 155232. Its totient is φ = 73920.

The previous prime is 113647. The next prime is 113657. The reversal of 113649 is 946311.

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

It is not a de Polignac number, because 113649 - 2¹ = 113647 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113647) 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, 312 + ... + 569.

It is an arithmetic number, because the mean of its divisors is an integer number (19404).

2¹¹³⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

113649 is a deficient number, since it is larger than the sum of its proper divisors (41583).

113649 is an equidigital number, since it uses as much as digits as its factorization.

113649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927.

The product of its digits is 648, while the sum is 24.

The square root of 113649 is about 337.1186734668. The cubic root of 113649 is about 48.4382606193.

It can be divided in two parts, 113 and 649, that multiplied together give a palindrome (73337).

The spelling of 113649 in words is "one hundred thirteen thousand, six hundred forty-nine".