102003643 has 24 divisors (see below), whose sum is σ = 128126880. Its totient is φ = 80720640.

The previous prime is 102003623. The next prime is 102003653. The reversal of 102003643 is 346300201.

It is not a de Polignac number, because 102003643 - 2¹³ = 101995451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102003643.

It is not an unprimeable number, because it can be changed into a prime (102003623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31123 + ... + 34243.

It is an arithmetic number, because the mean of its divisors is an integer number (5338620).

Almost surely, 2^102003643 is an apocalyptic number.

102003643 is a deficient number, since it is larger than the sum of its proper divisors (26123237).

102003643 is a wasteful number, since it uses less digits than its factorization.

102003643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3187 (or 3180 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 102003643 is about 10099.6852921267. The cubic root of 102003643 is about 467.2384352835.

Adding to 102003643 its reverse (346300201), we get a palindrome (448303844).

The spelling of 102003643 in words is "one hundred two million, three thousand, six hundred forty-three".