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1226095961 is a prime number
BaseRepresentation
bin100100100010100…
…1011110101011001
310011110010010110112
41021011023311121
510002340032321
6321355254105
742245433536
oct11105136531
93143103415
101226095961
1157a110052
122a274a335
1316703048c
14b8ba3d8d
1572992a5b
hex4914bd59

1226095961 has 2 divisors, whose sum is σ = 1226095962. Its totient is φ = 1226095960.

The previous prime is 1226095957. The next prime is 1226095963. The reversal of 1226095961 is 1695906221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 832668736 + 393427225 = 28856^2 + 19835^2 .

It is an emirp because it is prime and its reverse (1695906221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1226095961 - 22 = 1226095957 is a prime.

It is a super-2 number, since 2×12260959612 = 3006622611161027042, which contains 22 as substring.

Together with 1226095963, 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 (1226095963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613047980 + 613047981.

It is an arithmetic number, because the mean of its divisors is an integer number (613047981).

Almost surely, 21226095961 is an apocalyptic number.

It is an amenable number.

1226095961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226095961 is an equidigital number, since it uses as much as digits as its factorization.

1226095961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 1226095961 is about 35015.6530854417. The cubic root of 1226095961 is about 1070.3064778467.

The spelling of 1226095961 in words is "one billion, two hundred twenty-six million, ninety-five thousand, nine hundred sixty-one".