103530643 has 4 divisors (see below), whose sum is σ = 103557960. Its totient is φ = 103503328.

The previous prime is 103530599. The next prime is 103530653. The reversal of 103530643 is 346035301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103530643 - 2⁹ = 103530131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103530653) 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, 6838 + ... + 15931.

It is an arithmetic number, because the mean of its divisors is an integer number (25889490).

Almost surely, 2^103530643 is an apocalyptic number.

103530643 is a deficient number, since it is larger than the sum of its proper divisors (27317).

103530643 is an equidigital number, since it uses as much as digits as its factorization.

103530643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27316.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 103530643 is about 10175.0008845208. Note that the first 3 decimals coincide. The cubic root of 103530643 is about 469.5584248561.

Adding to 103530643 its reverse (346035301), we get a palindrome (449565944).

The spelling of 103530643 in words is "one hundred three million, five hundred thirty thousand, six hundred forty-three".