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215141141 is a prime number
BaseRepresentation
bin11001101001011…
…00101100010101
3112222211022011102
430310230230111
5420034004031
633203115445
75221445435
oct1464545425
9488738142
10215141141
111004947a6
1260072b85
1335758c67
14208042c5
1513d4a7cb
hexcd2cb15

215141141 has 2 divisors, whose sum is σ = 215141142. Its totient is φ = 215141140.

The previous prime is 215141131. The next prime is 215141159. The reversal of 215141141 is 141141512.

215141141 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., 161544100 + 53597041 = 12710^2 + 7321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-215141141 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215141131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107570570 + 107570571.

It is an arithmetic number, because the mean of its divisors is an integer number (107570571).

Almost surely, 2215141141 is an apocalyptic number.

It is an amenable number.

215141141 is a deficient number, since it is larger than the sum of its proper divisors (1).

215141141 is an equidigital number, since it uses as much as digits as its factorization.

215141141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 160, while the sum is 20.

The square root of 215141141 is about 14667.6903771521. The cubic root of 215141141 is about 599.2037038401.

Adding to 215141141 its reverse (141141512), we get a palindrome (356282653).

The spelling of 215141141 in words is "two hundred fifteen million, one hundred forty-one thousand, one hundred forty-one".