102147 has 8 divisors (see below), whose sum is σ = 138240. Its totient is φ = 67080.

The previous prime is 102139. The next prime is 102149. The reversal of 102147 is 741201.

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

It is not a de Polignac number, because 102147 - 2³ = 102139 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (102149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22 + ... + 452.

It is an arithmetic number, because the mean of its divisors is an integer number (17280).

2¹⁰²¹⁴⁷ is an apocalyptic number.

102147 is a deficient number, since it is larger than the sum of its proper divisors (36093).

102147 is an equidigital number, since it uses as much as digits as its factorization.

102147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 102147 is about 319.6044430229. The cubic root of 102147 is about 46.7457220103.

Adding to 102147 its reverse (741201), we get a palindrome (843348).

The spelling of 102147 in words is "one hundred two thousand, one hundred forty-seven", and thus it is an iban number.