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122741 is a prime number
BaseRepresentation
bin11101111101110101
320020100222
4131331311
512411431
62344125
71020563
oct357565
9206328
10122741
1184243
125b045
1343b38
1432a33
152657b
hex1df75

122741 has 2 divisors, whose sum is σ = 122742. Its totient is φ = 122740.

The previous prime is 122719. The next prime is 122743. The reversal of 122741 is 147221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119716 + 3025 = 346^2 + 55^2 .

It is an emirp because it is prime and its reverse (147221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122741 - 214 = 106357 is a prime.

Together with 122743, 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 (122743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61370 + 61371.

It is an arithmetic number, because the mean of its divisors is an integer number (61371).

2122741 is an apocalyptic number.

It is an amenable number.

122741 is a deficient number, since it is larger than the sum of its proper divisors (1).

122741 is an equidigital number, since it uses as much as digits as its factorization.

122741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112, while the sum is 17.

The square root of 122741 is about 350.3441165483. The cubic root of 122741 is about 49.6969671319.

Adding to 122741 its reverse (147221), we get a palindrome (269962).

The spelling of 122741 in words is "one hundred twenty-two thousand, seven hundred forty-one", and thus it is an iban number.