103305506 has 4 divisors (see below), whose sum is σ = 154958262. Its totient is φ = 51652752.

The previous prime is 103305493. The next prime is 103305509. The reversal of 103305506 is 605503301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 605503301 = 13 ⋅46577177.

It can be written as a sum of positive squares in only one way, i.e., 79049881 + 24255625 = 8891^2 + 4925^2 .

It is not an unprimeable number, because it can be changed into a prime (103305509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25826375 + ... + 25826378.

Almost surely, 2^103305506 is an apocalyptic number.

103305506 is a deficient number, since it is larger than the sum of its proper divisors (51652756).

103305506 is an equidigital number, since it uses as much as digits as its factorization.

103305506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51652755.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 103305506 is about 10163.9316211789. The cubic root of 103305506 is about 469.2178117013.

Adding to 103305506 its reverse (605503301), we get a palindrome (708808807).

The spelling of 103305506 in words is "one hundred three million, three hundred five thousand, five hundred six".