102047 has 4 divisors (see below), whose sum is σ = 111336. Its totient is φ = 92760.

The previous prime is 102043. The next prime is 102059. The reversal of 102047 is 740201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102047 - 2² = 102043 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 (102043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4628 + ... + 4649.

It is an arithmetic number, because the mean of its divisors is an integer number (27834).

2¹⁰²⁰⁴⁷ is an apocalyptic number.

102047 is a deficient number, since it is larger than the sum of its proper divisors (9289).

102047 is an equidigital number, since it uses as much as digits as its factorization.

102047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9288.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 102047 is about 319.4479613333. The cubic root of 102047 is about 46.7304626342.

Adding to 102047 its reverse (740201), we get a palindrome (842248).

The spelling of 102047 in words is "one hundred two thousand, forty-seven", and thus it is an iban number.