123712877 has 2 divisors, whose sum is σ = 123712878. Its totient is φ = 123712876.

The previous prime is 123712873. The next prime is 123712891. The reversal of 123712877 is 778217321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109956196 + 13756681 = 10486^2 + 3709^2 .

It is a cyclic number.

It is not a de Polignac number, because 123712877 - 2² = 123712873 is a prime.

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 123712877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123712871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61856438 + 61856439.

It is an arithmetic number, because the mean of its divisors is an integer number (61856439).

Almost surely, 2^123712877 is an apocalyptic number.

It is an amenable number.

123712877 is a deficient number, since it is larger than the sum of its proper divisors (1).

123712877 is an equidigital number, since it uses as much as digits as its factorization.

123712877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32928, while the sum is 38.

The square root of 123712877 is about 11122.6290507236. The cubic root of 123712877 is about 498.2779116327.

The spelling of 123712877 in words is "one hundred twenty-three million, seven hundred twelve thousand, eight hundred seventy-seven".