103252505 has 4 divisors (see below), whose sum is σ = 123903012. Its totient is φ = 82602000.

The previous prime is 103252493. The next prime is 103252519. The reversal of 103252505 is 505252301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505252301 = 137 ⋅3687973.

It can be written as a sum of positive squares in 2 ways, for example, as 24167056 + 79085449 = 4916^2 + 8893^2 .

It is not a de Polignac number, because 103252505 - 2¹⁸ = 102990361 is a prime.

It is a super-2 number, since 2×103252505² = 21322159577550050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10325246 + ... + 10325255.

It is an arithmetic number, because the mean of its divisors is an integer number (30975753).

Almost surely, 2^103252505 is an apocalyptic number.

It is an amenable number.

103252505 is a deficient number, since it is larger than the sum of its proper divisors (20650507).

103252505 is an equidigital number, since it uses as much as digits as its factorization.

103252505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20650506.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 103252505 is about 10161.3239786949. The cubic root of 103252505 is about 469.1375537414.

The spelling of 103252505 in words is "one hundred three million, two hundred fifty-two thousand, five hundred five".