101447 has 4 divisors (see below), whose sum is σ = 102120. Its totient is φ = 100776.

The previous prime is 101429. The next prime is 101449. The reversal of 101447 is 744101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 744101 = 79 ⋅9419.

It is a cyclic number.

It is not a de Polignac number, because 101447 - 2⁶ = 101383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 101447.

It is not an unprimeable number, because it can be changed into a prime (101449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8 + ... + 450.

It is an arithmetic number, because the mean of its divisors is an integer number (25530).

2¹⁰¹⁴⁴⁷ is an apocalyptic number.

101447 is a deficient number, since it is larger than the sum of its proper divisors (673).

101447 is an equidigital number, since it uses as much as digits as its factorization.

101447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 101447 is about 318.5074567416. The cubic root of 101447 is about 46.6386963909.

Adding to 101447 its reverse (744101), we get a palindrome (845548).

The spelling of 101447 in words is "one hundred one thousand, four hundred forty-seven", and thus it is an iban number.