102444563 has 4 divisors (see below), whose sum is σ = 110324928. Its totient is φ = 94564200.

The previous prime is 102444547. The next prime is 102444581. The reversal of 102444563 is 365444201.

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 102444563 - 2⁴ = 102444547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102444583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3940163 + ... + 3940188.

It is an arithmetic number, because the mean of its divisors is an integer number (27581232).

Almost surely, 2^102444563 is an apocalyptic number.

102444563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102444563 is a deficient number, since it is larger than the sum of its proper divisors (7880365).

102444563 is an equidigital number, since it uses as much as digits as its factorization.

102444563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7880364.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 102444563 is about 10121.4901570866. The cubic root of 102444563 is about 467.9106944188.

Adding to 102444563 its reverse (365444201), we get a palindrome (467888764).

The spelling of 102444563 in words is "one hundred two million, four hundred forty-four thousand, five hundred sixty-three".