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122215141 is a prime number
BaseRepresentation
bin1110100100011…
…01101011100101
322111222011122201
413102031223211
5222241341031
620043254501
73012545236
oct722155345
9274864581
10122215141
1162a95054
1234b1a431
131c421269
141233508d
15aae1d61
hex748dae5

122215141 has 2 divisors, whose sum is σ = 122215142. Its totient is φ = 122215140.

The previous prime is 122215139. The next prime is 122215183. The reversal of 122215141 is 141512221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122213025 + 2116 = 11055^2 + 46^2 .

It is a cyclic number.

It is not a de Polignac number, because 122215141 - 21 = 122215139 is a prime.

Together with 122215139, 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 (122215111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61107570 + 61107571.

It is an arithmetic number, because the mean of its divisors is an integer number (61107571).

Almost surely, 2122215141 is an apocalyptic number.

It is an amenable number.

122215141 is a deficient number, since it is larger than the sum of its proper divisors (1).

122215141 is an equidigital number, since it uses as much as digits as its factorization.

122215141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 160, while the sum is 19.

The square root of 122215141 is about 11055.0957028874. The cubic root of 122215141 is about 496.2589333180.

Adding to 122215141 its reverse (141512221), we get a palindrome (263727362).

The spelling of 122215141 in words is "one hundred twenty-two million, two hundred fifteen thousand, one hundred forty-one".