102266805 has 16 divisors (see below), whose sum is σ = 166310784. Its totient is φ = 53647680.

The previous prime is 102266777. The next prime is 102266807. The reversal of 102266805 is 508662201.

It is not a de Polignac number, because 102266805 - 2⁷ = 102266677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102266807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54969 + ... + 56798.

It is an arithmetic number, because the mean of its divisors is an integer number (10394424).

Almost surely, 2^102266805 is an apocalyptic number.

102266805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102266805 is a deficient number, since it is larger than the sum of its proper divisors (64043979).

102266805 is a wasteful number, since it uses less digits than its factorization.

102266805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111836.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 102266805 is about 10112.7051277094. The cubic root of 102266805 is about 467.6399039850.

The spelling of 102266805 in words is "one hundred two million, two hundred sixty-six thousand, eight hundred five".