15242 has 4 divisors (see below), whose sum is σ = 22866. Its totient is φ = 7620.

The previous prime is 15241. The next prime is 15259. The reversal of 15242 is 24251.

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

It can be written as a sum of positive squares in only one way, i.e., 10201 + 5041 = 101^2 + 71^2 .

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 15242.

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 as a sum of consecutive naturals, namely, 3809 + ... + 3812.

2¹⁵²⁴² is an apocalyptic number.

15242 is a deficient number, since it is larger than the sum of its proper divisors (7624).

15242 is an equidigital number, since it uses as much as digits as its factorization.

15242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7623.

The product of its digits is 80, while the sum is 14.

The square root of 15242 is about 123.4584950500. The cubic root of 15242 is about 24.7940412323.

Adding to 15242 its reverse (24251), we get a palindrome (39493).

Subtracting 15242 from its reverse (24251), we obtain a palindrome (9009).

The spelling of 15242 in words is "fifteen thousand, two hundred forty-two".