101438 has 8 divisors (see below), whose sum is σ = 154632. Its totient is φ = 49896.

The previous prime is 101429. The next prime is 101449. The reversal of 101438 is 834101.

It is a happy number.

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

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245 + ... + 512.

It is an arithmetic number, because the mean of its divisors is an integer number (19329).

2¹⁰¹⁴³⁸ is an apocalyptic number.

101438 is a deficient number, since it is larger than the sum of its proper divisors (53194).

101438 is an equidigital number, since it uses as much as digits as its factorization.

101438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 101438 is about 318.4933280306. The cubic root of 101438 is about 46.6373171463.

Adding to 101438 its reverse (834101), we get a palindrome (935539).

The spelling of 101438 in words is "one hundred one thousand, four hundred thirty-eight".