103684121 has 16 divisors (see below), whose sum is σ = 112613760. Its totient is φ = 95137920.

The previous prime is 103684117. The next prime is 103684123. The reversal of 103684121 is 121486301.

It is a cyclic number.

It is not a de Polignac number, because 103684121 - 2² = 103684117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103684123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129695 + ... + 130491.

It is an arithmetic number, because the mean of its divisors is an integer number (7038360).

Almost surely, 2^103684121 is an apocalyptic number.

It is an amenable number.

103684121 is a deficient number, since it is larger than the sum of its proper divisors (8929639).

103684121 is a wasteful number, since it uses less digits than its factorization.

103684121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 103684121 is about 10182.5400072870. The cubic root of 103684121 is about 469.7903410744.

It can be divided in two parts, 103684 and 121, that multiplied together give a square (12545764 = 3542²).

The spelling of 103684121 in words is "one hundred three million, six hundred eighty-four thousand, one hundred twenty-one".