102550247 has 2 divisors, whose sum is σ = 102550248. Its totient is φ = 102550246.

The previous prime is 102550187. The next prime is 102550297. The reversal of 102550247 is 742055201.

It is a strong prime.

It is an emirp because it is prime and its reverse (742055201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102550247 - 2²⁴ = 85773031 is a prime.

It is a super-2 number, since 2×102550247² = 21033106319522018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102550297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51275123 + 51275124.

It is an arithmetic number, because the mean of its divisors is an integer number (51275124).

Almost surely, 2^102550247 is an apocalyptic number.

102550247 is a deficient number, since it is larger than the sum of its proper divisors (1).

102550247 is an equidigital number, since it uses as much as digits as its factorization.

102550247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 102550247 is about 10126.7095840653. The cubic root of 102550247 is about 468.0715413436.

The spelling of 102550247 in words is "one hundred two million, five hundred fifty thousand, two hundred forty-seven".