123196277 has 2 divisors, whose sum is σ = 123196278. Its totient is φ = 123196276.

The previous prime is 123196261. The next prime is 123196279. The reversal of 123196277 is 772691321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106213636 + 16982641 = 10306^2 + 4121^2 .

It is an emirp because it is prime and its reverse (772691321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123196277 - 2⁴ = 123196261 is a prime.

Together with 123196279, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123196277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123196279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61598138 + 61598139.

It is an arithmetic number, because the mean of its divisors is an integer number (61598139).

Almost surely, 2^123196277 is an apocalyptic number.

It is an amenable number.

123196277 is a deficient number, since it is larger than the sum of its proper divisors (1).

123196277 is an equidigital number, since it uses as much as digits as its factorization.

123196277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 38.

The square root of 123196277 is about 11099.3818296336. The cubic root of 123196277 is about 497.5833746617.

The spelling of 123196277 in words is "one hundred twenty-three million, one hundred ninety-six thousand, two hundred seventy-seven".