103305172 has 6 divisors (see below), whose sum is σ = 180784058. Its totient is φ = 51652584.

The previous prime is 103305161. The next prime is 103305173. The reversal of 103305172 is 271503301.

It can be written as a sum of positive squares in only one way, i.e., 99321156 + 3984016 = 9966^2 + 1996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103305173) 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 as a sum of consecutive naturals, namely, 12913143 + ... + 12913150.

Almost surely, 2^103305172 is an apocalyptic number.

It is an amenable number.

103305172 is a deficient number, since it is larger than the sum of its proper divisors (77478886).

103305172 is a wasteful number, since it uses less digits than its factorization.

103305172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25826297 (or 25826295 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 103305172 is about 10163.9151905159. The cubic root of 103305172 is about 469.2173060202.

Adding to 103305172 its reverse (271503301), we get a palindrome (374808473).

The spelling of 103305172 in words is "one hundred three million, three hundred five thousand, one hundred seventy-two".