103663813 has 8 divisors (see below), whose sum is σ = 115222176. Its totient is φ = 92461200.

The previous prime is 103663799. The next prime is 103663823. The reversal of 103663813 is 318366301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103663813 is a prime.

It is a super-2 number, since 2×103663813² = 21492372251397938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103663823) 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 7 ways as a sum of consecutive naturals, for example, 88323 + ... + 89488.

It is an arithmetic number, because the mean of its divisors is an integer number (14402772).

Almost surely, 2^103663813 is an apocalyptic number.

It is an amenable number.

103663813 is a deficient number, since it is larger than the sum of its proper divisors (11558363).

103663813 is a wasteful number, since it uses less digits than its factorization.

103663813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177875.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 103663813 is about 10181.5427612911. The cubic root of 103663813 is about 469.7596673798.

The spelling of 103663813 in words is "one hundred three million, six hundred sixty-three thousand, eight hundred thirteen".