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15241 is a prime number
BaseRepresentation
bin11101110001001
3202220111
43232021
5441431
6154321
762302
oct35611
922814
1015241
11104a6
1289a1
136c25
1457a9
1547b1
hex3b89

15241 has 2 divisors, whose sum is σ = 15242. Its totient is φ = 15240.

The previous prime is 15233. The next prime is 15259. The reversal of 15241 is 14251.

Adding to 15241 its reverse (14251), we get a palindrome (29492).

Subtracting from 15241 its reverse (14251), we obtain a triangular number (990 = T44).

It can be divided in two parts, 15 and 241, that added together give a 8-th power (256 = 28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14400 + 841 = 120^2 + 29^2 .

It is an emirp because it is prime and its reverse (14251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15241 - 23 = 15233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7620 + 7621.

It is an arithmetic number, because the mean of its divisors is an integer number (7621).

215241 is an apocalyptic number.

It is an amenable number.

15241 is a deficient number, since it is larger than the sum of its proper divisors (1).

15241 is an equidigital number, since it uses as much as digits as its factorization.

15241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40, while the sum is 13.

The square root of 15241 is about 123.4544450395. The cubic root of 15241 is about 24.7934989897.

The spelling of 15241 in words is "fifteen thousand, two hundred forty-one".