103438 has 4 divisors (see below), whose sum is σ = 155160. Its totient is φ = 51718.

The previous prime is 103423. The next prime is 103451. The reversal of 103438 is 834301.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

103438 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25858 + ... + 25861.

It is an arithmetic number, because the mean of its divisors is an integer number (38790).

2¹⁰³⁴³⁸ is an apocalyptic number.

103438 is a deficient number, since it is larger than the sum of its proper divisors (51722).

103438 is an equidigital number, since it uses as much as digits as its factorization.

103438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51721.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 103438 is about 321.6177855779. The cubic root of 103438 is about 46.9418323717.

Adding to 103438 its reverse (834301), we get a palindrome (937739).

The spelling of 103438 in words is "one hundred three thousand, four hundred thirty-eight".