102945223 has 2 divisors, whose sum is σ = 102945224. Its totient is φ = 102945222.

The previous prime is 102945169. The next prime is 102945253. The reversal of 102945223 is 322549201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102945223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102945191 and 102945200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102945253) 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, 51472611 + 51472612.

It is an arithmetic number, because the mean of its divisors is an integer number (51472612).

Almost surely, 2^102945223 is an apocalyptic number.

102945223 is a deficient number, since it is larger than the sum of its proper divisors (1).

102945223 is an equidigital number, since it uses as much as digits as its factorization.

102945223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 102945223 is about 10146.1925371047. The cubic root of 102945223 is about 468.6717029995.

The spelling of 102945223 in words is "one hundred two million, nine hundred forty-five thousand, two hundred twenty-three".