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655243 is a prime number
BaseRepresentation
bin10011111111110001011
31020021211021
42133332023
5131431433
622013311
75366221
oct2377613
91207737
10655243
11408326
12277237
1319c324
14130b11
15ce22d
hex9ff8b

655243 has 2 divisors, whose sum is σ = 655244. Its totient is φ = 655242.

The previous prime is 655241. The next prime is 655261. The reversal of 655243 is 342556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655243 - 21 = 655241 is a prime.

Together with 655241, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 6 + 52 + 218 + 58 + 44 + 37 .

It is not a weakly prime, because it can be changed into another prime (655241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327621 + 327622.

It is an arithmetic number, because the mean of its divisors is an integer number (327622).

2655243 is an apocalyptic number.

655243 is a deficient number, since it is larger than the sum of its proper divisors (1).

655243 is an equidigital number, since it uses as much as digits as its factorization.

655243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 655243 is about 809.4708147920. The cubic root of 655243 is about 86.8561943664.

Adding to 655243 its reverse (342556), we get a palindrome (997799).

It can be divided in two parts, 655 and 243, that added together give a palindrome (898).

The spelling of 655243 in words is "six hundred fifty-five thousand, two hundred forty-three".