123080857 has 2 divisors, whose sum is σ = 123080858. Its totient is φ = 123080856.

The previous prime is 123080851. The next prime is 123080873. The reversal of 123080857 is 758080321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121242121 + 1838736 = 11011^2 + 1356^2 .

It is a cyclic number.

It is not a de Polignac number, because 123080857 - 2¹⁹ = 122556569 is a prime.

It is not a weakly prime, because it can be changed into another prime (123080851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61540428 + 61540429.

It is an arithmetic number, because the mean of its divisors is an integer number (61540429).

Almost surely, 2^123080857 is an apocalyptic number.

It is an amenable number.

123080857 is a deficient number, since it is larger than the sum of its proper divisors (1).

123080857 is an equidigital number, since it uses as much as digits as its factorization.

123080857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 123080857 is about 11094.1812226049. The cubic root of 123080857 is about 497.4279343103.

The spelling of 123080857 in words is "one hundred twenty-three million, eighty thousand, eight hundred fifty-seven".