101147 has 4 divisors (see below), whose sum is σ = 103656. Its totient is φ = 98640.

The previous prime is 101141. The next prime is 101149. The reversal of 101147 is 741101.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101147 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 101147.

It is not an unprimeable number, because it can be changed into a prime (101141) 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, 1193 + ... + 1274.

It is an arithmetic number, because the mean of its divisors is an integer number (25914).

2¹⁰¹¹⁴⁷ is an apocalyptic number.

101147 is a deficient number, since it is larger than the sum of its proper divisors (2509).

101147 is an equidigital number, since it uses as much as digits as its factorization.

101147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 101147 is about 318.0361614660. The cubic root of 101147 is about 46.5926775382.

Adding to 101147 its reverse (741101), we get a palindrome (842248).

The spelling of 101147 in words is "one hundred one thousand, one hundred forty-seven", and thus it is an iban number.