102209927 has 2 divisors, whose sum is σ = 102209928. Its totient is φ = 102209926.

The previous prime is 102209923. The next prime is 102209941. The reversal of 102209927 is 729902201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102209927 - 2² = 102209923 is a prime.

It is a Chen prime.

It is equal to p_5881424 and since 102209927 and 5881424 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 102209893 and 102209902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102209923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51104963 + 51104964.

It is an arithmetic number, because the mean of its divisors is an integer number (51104964).

Almost surely, 2^102209927 is an apocalyptic number.

102209927 is a deficient number, since it is larger than the sum of its proper divisors (1).

102209927 is an equidigital number, since it uses as much as digits as its factorization.

102209927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 102209927 is about 10109.8925315752. The cubic root of 102209927 is about 467.5531917324.

The spelling of 102209927 in words is "one hundred two million, two hundred nine thousand, nine hundred twenty-seven".