103666245 has 32 divisors (see below), whose sum is σ = 172851840. Its totient is φ = 53007360.

The previous prime is 103666243. The next prime is 103666259. The reversal of 103666245 is 542666301.

It is not a de Polignac number, because 103666245 - 2¹ = 103666243 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 (103666243) 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 in 31 ways as a sum of consecutive naturals, for example, 34857 + ... + 37713.

It is an arithmetic number, because the mean of its divisors is an integer number (5401620).

Almost surely, 2^103666245 is an apocalyptic number.

103666245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103666245 is a deficient number, since it is larger than the sum of its proper divisors (69185595).

103666245 is a wasteful number, since it uses less digits than its factorization.

103666245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 103666245 is about 10181.6621923928. The cubic root of 103666245 is about 469.7633409426.

The spelling of 103666245 in words is "one hundred three million, six hundred sixty-six thousand, two hundred forty-five".