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215141 is a prime number
BaseRepresentation
bin110100100001100101
3101221010012
4310201211
523341031
64340005
71554143
oct644145
9357105
10215141
11137703
12a4605
1376c04
1458593
1543b2b
hex34865

215141 has 2 divisors, whose sum is σ = 215142. Its totient is φ = 215140.

The previous prime is 215123. The next prime is 215143. The reversal of 215141 is 141512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206116 + 9025 = 454^2 + 95^2 .

It is a cyclic number.

It is not a de Polignac number, because 215141 - 26 = 215077 is a prime.

Together with 215143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107570 + 107571.

It is an arithmetic number, because the mean of its divisors is an integer number (107571).

2215141 is an apocalyptic number.

It is an amenable number.

215141 is a deficient number, since it is larger than the sum of its proper divisors (1).

215141 is an equidigital number, since it uses as much as digits as its factorization.

215141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40, while the sum is 14.

The square root of 215141 is about 463.8329440650. The cubic root of 215141 is about 59.9203572937.

Adding to 215141 its reverse (141512), we get a palindrome (356653).

The spelling of 215141 in words is "two hundred fifteen thousand, one hundred forty-one".