102493 has 4 divisors (see below), whose sum is σ = 108540. Its totient is φ = 96448.

The previous prime is 102481. The next prime is 102497. The reversal of 102493 is 394201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 88804 + 13689 = 298^2 + 117^2 .

It is a cyclic number.

It is not a de Polignac number, because 102493 - 2⁵ = 102461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102497) 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, 2998 + ... + 3031.

It is an arithmetic number, because the mean of its divisors is an integer number (27135).

2¹⁰²⁴⁹³ is an apocalyptic number.

It is an amenable number.

102493 is a deficient number, since it is larger than the sum of its proper divisors (6047).

102493 is an equidigital number, since it uses as much as digits as its factorization.

102493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6046.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 102493 is about 320.1452795217. The cubic root of 102493 is about 46.7984427368.

Adding to 102493 its reverse (394201), we get a palindrome (496694).

It can be divided in two parts, 102 and 493, that added together give a palindrome (595).

The spelling of 102493 in words is "one hundred two thousand, four hundred ninety-three".