15245 has 4 divisors (see below), whose sum is σ = 18300. Its totient is φ = 12192.

The previous prime is 15241. The next prime is 15259. The reversal of 15245 is 54251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3364 + 11881 = 58^2 + 109^2 .

It is a cyclic number.

It is not a de Polignac number, because 15245 - 2² = 15241 is a prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15241) 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, 1520 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (4575).

2¹⁵²⁴⁵ is an apocalyptic number.

It is an amenable number.

15245 is a deficient number, since it is larger than the sum of its proper divisors (3055).

15245 is an equidigital number, since it uses as much as digits as its factorization.

15245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054.

The product of its digits is 200, while the sum is 17.

The square root of 15245 is about 123.4706442844. The cubic root of 15245 is about 24.7956678177.

Adding to 15245 its reverse (54251), we get a palindrome (69496).

The spelling of 15245 in words is "fifteen thousand, two hundred forty-five".