123857077 has 2 divisors, whose sum is σ = 123857078. Its totient is φ = 123857076.

The previous prime is 123857051. The next prime is 123857119. The reversal of 123857077 is 770758321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106626276 + 17230801 = 10326^2 + 4151^2 .

It is a cyclic number.

It is not a de Polignac number, because 123857077 - 2¹¹ = 123855029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123857177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61928538 + 61928539.

It is an arithmetic number, because the mean of its divisors is an integer number (61928539).

Almost surely, 2^123857077 is an apocalyptic number.

It is an amenable number.

123857077 is a deficient number, since it is larger than the sum of its proper divisors (1).

123857077 is an equidigital number, since it uses as much as digits as its factorization.

123857077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 123857077 is about 11129.1094432574. The cubic root of 123857077 is about 498.4714344031.

The spelling of 123857077 in words is "one hundred twenty-three million, eight hundred fifty-seven thousand, seventy-seven".