102644 has 12 divisors (see below), whose sum is σ = 182784. Its totient is φ = 50424.

The previous prime is 102643. The next prime is 102647. The reversal of 102644 is 446201.

102644 is nontrivially palindromic in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102643) 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, 77 + ... + 459.

It is an arithmetic number, because the mean of its divisors is an integer number (15232).

2¹⁰²⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

102644 is a deficient number, since it is larger than the sum of its proper divisors (80140).

102644 is a wasteful number, since it uses less digits than its factorization.

102644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 102644 is about 320.3810231584. The cubic root of 102644 is about 46.8214137279.

Adding to 102644 its reverse (446201), we get a palindrome (548845).

The spelling of 102644 in words is "one hundred two thousand, six hundred forty-four".