103655603 has 4 divisors (see below), whose sum is σ = 104038368. Its totient is φ = 103272840.

The previous prime is 103655597. The next prime is 103655609. The reversal of 103655603 is 306556301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306556301 = 8059 ⋅38039.

It is an interprime number because it is at equal distance from previous prime (103655597) and next prime (103655609).

It is a cyclic number.

It is not a de Polignac number, because 103655603 - 2²⁴ = 86878387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103655609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190976 + ... + 191517.

It is an arithmetic number, because the mean of its divisors is an integer number (26009592).

Almost surely, 2^103655603 is an apocalyptic number.

103655603 is a deficient number, since it is larger than the sum of its proper divisors (382765).

103655603 is an equidigital number, since it uses as much as digits as its factorization.

103655603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382764.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 103655603 is about 10181.1395727590. The cubic root of 103655603 is about 469.7472656600.

The spelling of 103655603 in words is "one hundred three million, six hundred fifty-five thousand, six hundred three".