123277061 has 2 divisors, whose sum is σ = 123277062. Its totient is φ = 123277060.

The previous prime is 123277027. The next prime is 123277069. The reversal of 123277061 is 160772321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107516161 + 15760900 = 10369^2 + 3970^2 .

It is an emirp because it is prime and its reverse (160772321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123277061 - 2¹⁰ = 123276037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123277069) 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, 61638530 + 61638531.

It is an arithmetic number, because the mean of its divisors is an integer number (61638531).

Almost surely, 2^123277061 is an apocalyptic number.

It is an amenable number.

123277061 is a deficient number, since it is larger than the sum of its proper divisors (1).

123277061 is an equidigital number, since it uses as much as digits as its factorization.

123277061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 123277061 is about 11103.0203548404. The cubic root of 123277061 is about 497.6921116933.

The spelling of 123277061 in words is "one hundred twenty-three million, two hundred seventy-seven thousand, sixty-one".