103816945 has 8 divisors (see below), whose sum is σ = 124666920. Its totient is φ = 82995840.

The previous prime is 103816939. The next prime is 103816967. The reversal of 103816945 is 549618301.

It can be written as a sum of positive squares in 4 ways, for example, as 13490929 + 90326016 = 3673^2 + 9504^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103816945 - 2¹¹ = 103814897 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1701 + ... + 14509.

It is an arithmetic number, because the mean of its divisors is an integer number (15583365).

Almost surely, 2^103816945 is an apocalyptic number.

It is an amenable number.

103816945 is a deficient number, since it is larger than the sum of its proper divisors (20849975).

103816945 is a wasteful number, since it uses less digits than its factorization.

103816945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14435.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 103816945 is about 10189.0600645987. The cubic root of 103816945 is about 469.9908629580.

The spelling of 103816945 in words is "one hundred three million, eight hundred sixteen thousand, nine hundred forty-five".