103603645 has 8 divisors (see below), whose sum is σ = 125044056. Its totient is φ = 82403136.

The previous prime is 103603603. The next prime is 103603673. The reversal of 103603645 is 546306301.

It can be written as a sum of positive squares in 4 ways, for example, as 53392249 + 50211396 = 7307^2 + 7086^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 103603645 - 2¹⁹ = 103079357 is a prime.

It is a super-3 number, since 3×103603645³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59022 + ... + 60751.

It is an arithmetic number, because the mean of its divisors is an integer number (15630507).

Almost surely, 2^103603645 is an apocalyptic number.

It is an amenable number.

103603645 is a deficient number, since it is larger than the sum of its proper divisors (21440411).

103603645 is a wasteful number, since it uses less digits than its factorization.

103603645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119951.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 103603645 is about 10178.5875739220. The cubic root of 103603645 is about 469.6687646531.

Adding to 103603645 its reverse (546306301), we get a palindrome (649909946).

The spelling of 103603645 in words is "one hundred three million, six hundred three thousand, six hundred forty-five".