103145 has 12 divisors (see below), whose sum is σ = 144324. Its totient is φ = 70560.

The previous prime is 103141. The next prime is 103171. The reversal of 103145 is 541301.

It can be written as a sum of positive squares in 2 ways, for example, as 12544 + 90601 = 112^2 + 301^2 .

It is not a de Polignac number, because 103145 - 2² = 103141 is a prime.

It is a Duffinian number.

103145 is a Rhonda number in base 12.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 103145.

It is not an unprimeable number, because it can be changed into a prime (103141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35 + ... + 455.

It is an arithmetic number, because the mean of its divisors is an integer number (12027).

2¹⁰³¹⁴⁵ is an apocalyptic number.

It is an amenable number.

103145 is a deficient number, since it is larger than the sum of its proper divisors (41179).

103145 is an equidigital number, since it uses as much as digits as its factorization.

103145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 103145 is about 321.1619529147. The cubic root of 103145 is about 46.8974677477.

Adding to 103145 its reverse (541301), we get a palindrome (644446).

The spelling of 103145 in words is "one hundred three thousand, one hundred forty-five".