113438 has 8 divisors (see below), whose sum is σ = 183288. Its totient is φ = 52344.

The previous prime is 113437. The next prime is 113453. The reversal of 113438 is 834311.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113437) 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 3 ways as a sum of consecutive naturals, for example, 2156 + ... + 2207.

It is an arithmetic number, because the mean of its divisors is an integer number (22911).

2¹¹³⁴³⁸ is an apocalyptic number.

113438 is a deficient number, since it is larger than the sum of its proper divisors (69850).

113438 is a wasteful number, since it uses less digits than its factorization.

113438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4378.

The product of its digits is 288, while the sum is 20.

The square root of 113438 is about 336.8055819015. The cubic root of 113438 is about 48.4082653280.

Adding to 113438 its reverse (834311), we get a palindrome (947749).

It can be divided in two parts, 113 and 438, that multiplied together give a palindrome (49494).

The spelling of 113438 in words is "one hundred thirteen thousand, four hundred thirty-eight".