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122886497 is a prime number
BaseRepresentation
bin1110101001100…
…01100101100001
322120020021120202
413110301211201
5222424331442
620105514545
73021342446
oct724614541
9276207522
10122886497
1163403498
12351a2a55
131c5c7a06
141246b9cd
15abc5c32
hex7531961

122886497 has 2 divisors, whose sum is σ = 122886498. Its totient is φ = 122886496.

The previous prime is 122886479. The next prime is 122886499. The reversal of 122886497 is 794688221.

It is a happy number.

Together with previous prime (122886479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94167616 + 28718881 = 9704^2 + 5359^2 .

It is a cyclic number.

It is not a de Polignac number, because 122886497 - 226 = 55777633 is a prime.

It is a super-2 number, since 2×1228864972 = 30202182289862018, which contains 22 as substring.

Together with 122886499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122886499) 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, 61443248 + 61443249.

It is an arithmetic number, because the mean of its divisors is an integer number (61443249).

Almost surely, 2122886497 is an apocalyptic number.

It is an amenable number.

122886497 is a deficient number, since it is larger than the sum of its proper divisors (1).

122886497 is an equidigital number, since it uses as much as digits as its factorization.

122886497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 47.

The square root of 122886497 is about 11085.4182149344. The cubic root of 122886497 is about 497.1659628162.

The spelling of 122886497 in words is "one hundred twenty-two million, eight hundred eighty-six thousand, four hundred ninety-seven".