102648643 has 2 divisors, whose sum is σ = 102648644. Its totient is φ = 102648642.

The previous prime is 102648629. The next prime is 102648647. The reversal of 102648643 is 346846201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102648643 - 2²¹ = 100551491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102648599 and 102648608.

It is not a weakly prime, because it can be changed into another prime (102648647) 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, 51324321 + 51324322.

It is an arithmetic number, because the mean of its divisors is an integer number (51324322).

Almost surely, 2^102648643 is an apocalyptic number.

102648643 is a deficient number, since it is larger than the sum of its proper divisors (1).

102648643 is an equidigital number, since it uses as much as digits as its factorization.

102648643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 102648643 is about 10131.5666606897. The cubic root of 102648643 is about 468.2211969071.

The spelling of 102648643 in words is "one hundred two million, six hundred forty-eight thousand, six hundred forty-three".