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BaseRepresentation
bin11111101111001
3211021211
43331321
51004444
6203121
765242
oct37571
924254
1016249
1111232
1294a1
13751c
145cc9
154c34
hex3f79

16249 has 2 divisors, whose sum is σ = 16250. Its totient is φ = 16248.

The previous prime is 16231. The next prime is 16253. The reversal of 16249 is 94261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14400 + 1849 = 120^2 + 43^2 .

It is an emirp because it is prime and its reverse (94261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16249 - 25 = 16217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8124 + 8125.

It is an arithmetic number, because the mean of its divisors is an integer number (8125).

216249 is an apocalyptic number.

It is an amenable number.

16249 is a deficient number, since it is larger than the sum of its proper divisors (1).

16249 is an equidigital number, since it uses as much as digits as its factorization.

16249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 16249 is about 127.4715654568. The cubic root of 16249 is about 25.3284655159.

The spelling of 16249 in words is "sixteen thousand, two hundred forty-nine".