101047 has 4 divisors (see below), whose sum is σ = 103816. Its totient is φ = 98280.

The previous prime is 101027. The next prime is 101051. The reversal of 101047 is 740101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740101 = 271 ⋅2731.

It is a cyclic number.

It is not a de Polignac number, because 101047 - 2¹¹ = 98999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101027) 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, 1329 + ... + 1402.

It is an arithmetic number, because the mean of its divisors is an integer number (25954).

2¹⁰¹⁰⁴⁷ is an apocalyptic number.

101047 is a deficient number, since it is larger than the sum of its proper divisors (2769).

101047 is an equidigital number, since it uses as much as digits as its factorization.

101047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 101047 is about 317.8789077621. The cubic root of 101047 is about 46.5773177019.

Adding to 101047 its reverse (740101), we get a palindrome (841148).

The spelling of 101047 in words is "one hundred one thousand, forty-seven", and thus it is an iban number.