115438 has 4 divisors (see below), whose sum is σ = 173160. Its totient is φ = 57718.

The previous prime is 115429. The next prime is 115459. The reversal of 115438 is 834511.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28858 + ... + 28861.

It is an arithmetic number, because the mean of its divisors is an integer number (43290).

2¹¹⁵⁴³⁸ is an apocalyptic number.

115438 is a deficient number, since it is larger than the sum of its proper divisors (57722).

115438 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 9 representation: 115438 = (185314)₉.

115438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57721.

The product of its digits is 480, while the sum is 22.

The square root of 115438 is about 339.7616811826. The cubic root of 115438 is about 48.6911013429.

Adding to 115438 its reverse (834511), we get a palindrome (949949).

The spelling of 115438 in words is "one hundred fifteen thousand, four hundred thirty-eight".