Search a number
-
+
2213147 is a prime number
BaseRepresentation
bin1000011100010100011011
311011102212102
420130110123
51031310042
6115234015
724545216
oct10342433
94142772
102213147
111281852
128a890b
135c6471
1441877d
152dab32
hex21c51b

2213147 has 2 divisors, whose sum is σ = 2213148. Its totient is φ = 2213146.

The previous prime is 2213143. The next prime is 2213171. The reversal of 2213147 is 7413122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2213147 - 22 = 2213143 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2213143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106573 + 1106574.

It is an arithmetic number, because the mean of its divisors is an integer number (1106574).

22213147 is an apocalyptic number.

2213147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2213147 is an equidigital number, since it uses as much as digits as its factorization.

2213147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 20.

The square root of 2213147 is about 1487.6649488376. The cubic root of 2213147 is about 130.3177041994.

Adding to 2213147 its reverse (7413122), we get a palindrome (9626269).

The spelling of 2213147 in words is "two million, two hundred thirteen thousand, one hundred forty-seven".