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421361 is a prime number
BaseRepresentation
bin1100110110111110001
3210101222222
41212313301
5101440421
613010425
73403313
oct1466761
9711888
10421361
11268636
12183a15
13119a35
14ad7b3
1584cab
hex66df1

421361 has 2 divisors, whose sum is σ = 421362. Its totient is φ = 421360.

The previous prime is 421349. The next prime is 421381. The reversal of 421361 is 163124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309136 + 112225 = 556^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 421361 - 214 = 404977 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 421361.

It is not a weakly prime, because it can be changed into another prime (421331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210680 + 210681.

It is an arithmetic number, because the mean of its divisors is an integer number (210681).

2421361 is an apocalyptic number.

It is an amenable number.

421361 is a deficient number, since it is larger than the sum of its proper divisors (1).

421361 is an equidigital number, since it uses as much as digits as its factorization.

421361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 17.

The square root of 421361 is about 649.1232548600. The cubic root of 421361 is about 74.9695283621.

Adding to 421361 its reverse (163124), we get a palindrome (584485).

The spelling of 421361 in words is "four hundred twenty-one thousand, three hundred sixty-one".