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227915137 is a prime number
BaseRepresentation
bin11011001010110…
…11010110000001
3120212212021210101
431211123112001
5431321241022
634341002401
75435150422
oct1545332601
9525767711
10227915137
1110771a01a
12643b3401
13382ac338
14223ab649
1515020627
hexd95b581

227915137 has 2 divisors, whose sum is σ = 227915138. Its totient is φ = 227915136.

The previous prime is 227915123. The next prime is 227915159. The reversal of 227915137 is 731519722.

227915137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227889216 + 25921 = 15096^2 + 161^2 .

It is a cyclic number.

It is not a de Polignac number, because 227915137 - 211 = 227913089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 227915096 and 227915105.

It is not a weakly prime, because it can be changed into another prime (227915117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113957568 + 113957569.

It is an arithmetic number, because the mean of its divisors is an integer number (113957569).

Almost surely, 2227915137 is an apocalyptic number.

It is an amenable number.

227915137 is a deficient number, since it is larger than the sum of its proper divisors (1).

227915137 is an equidigital number, since it uses as much as digits as its factorization.

227915137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 227915137 is about 15096.8585142738. The cubic root of 227915137 is about 610.8356700226.

The spelling of 227915137 in words is "two hundred twenty-seven million, nine hundred fifteen thousand, one hundred thirty-seven".