123065777 has 2 divisors, whose sum is σ = 123065778. Its totient is φ = 123065776.

The previous prime is 123065759. The next prime is 123065783. The reversal of 123065777 is 777560321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122965921 + 99856 = 11089^2 + 316^2 .

It is a cyclic number.

It is not a de Polignac number, because 123065777 - 2⁸ = 123065521 is a prime.

It is a super-2 number, since 2×123065777² = 30290370937227458, which contains 22 as substring.

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 123065777.

It is not a weakly prime, because it can be changed into another prime (123065797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61532888 + 61532889.

It is an arithmetic number, because the mean of its divisors is an integer number (61532889).

Almost surely, 2^123065777 is an apocalyptic number.

It is an amenable number.

123065777 is a deficient number, since it is larger than the sum of its proper divisors (1).

123065777 is an equidigital number, since it uses as much as digits as its factorization.

123065777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 38.

The square root of 123065777 is about 11093.5015662324. The cubic root of 123065777 is about 497.4076183440.

The spelling of 123065777 in words is "one hundred twenty-three million, sixty-five thousand, seven hundred seventy-seven".