102445103 has 2 divisors, whose sum is σ = 102445104. Its totient is φ = 102445102.

The previous prime is 102445087. The next prime is 102445121. The reversal of 102445103 is 301544201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102445103 - 2⁴ = 102445087 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102445163) 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 as a sum of consecutive naturals, namely, 51222551 + 51222552.

It is an arithmetic number, because the mean of its divisors is an integer number (51222552).

Almost surely, 2^102445103 is an apocalyptic number.

102445103 is a deficient number, since it is larger than the sum of its proper divisors (1).

102445103 is an equidigital number, since it uses as much as digits as its factorization.

102445103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 102445103 is about 10121.5168329653. The cubic root of 102445103 is about 467.9115165588.

Adding to 102445103 its reverse (301544201), we get a palindrome (403989304).

The spelling of 102445103 in words is "one hundred two million, four hundred forty-five thousand, one hundred three".