103249165 has 4 divisors (see below), whose sum is σ = 123899004. Its totient is φ = 82599328.

The previous prime is 103249163. The next prime is 103249183. The reversal of 103249165 is 561942301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561942301 = 31 ⋅18127171.

It can be written as a sum of positive squares in 2 ways, for example, as 18369796 + 84879369 = 4286^2 + 9213^2 .

It is a cyclic number.

It is not a de Polignac number, because 103249165 - 2¹ = 103249163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103249163) 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, 10324912 + ... + 10324921.

It is an arithmetic number, because the mean of its divisors is an integer number (30974751).

Almost surely, 2^103249165 is an apocalyptic number.

It is an amenable number.

103249165 is a deficient number, since it is larger than the sum of its proper divisors (20649839).

103249165 is an equidigital number, since it uses as much as digits as its factorization.

103249165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20649838.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 103249165 is about 10161.1596287038. The cubic root of 103249165 is about 469.1324951512.

The spelling of 103249165 in words is "one hundred three million, two hundred forty-nine thousand, one hundred sixty-five".