102387 has 4 divisors (see below), whose sum is σ = 136520. Its totient is φ = 68256.

The previous prime is 102367. The next prime is 102397. The reversal of 102387 is 783201.

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

It is not a de Polignac number, because 102387 - 2⁷ = 102259 is a prime.

It is a D-number.

It is a Duffinian number.

102387 is a lucky number.

It is a plaindrome in base 13.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (102317) 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, 17062 + ... + 17067.

It is an arithmetic number, because the mean of its divisors is an integer number (34130).

2¹⁰²³⁸⁷ is an apocalyptic number.

102387 is a deficient number, since it is larger than the sum of its proper divisors (34133).

102387 is an equidigital number, since it uses as much as digits as its factorization.

102387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34132.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 102387 is about 319.9796868553. The cubic root of 102387 is about 46.7823039239.

Adding to 102387 its reverse (783201), we get a palindrome (885588).

The spelling of 102387 in words is "one hundred two thousand, three hundred eighty-seven".