123963841 has 2 divisors, whose sum is σ = 123963842. Its totient is φ = 123963840.

The previous prime is 123963821. The next prime is 123963901. The reversal of 123963841 is 148369321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84713616 + 39250225 = 9204^2 + 6265^2 .

It is a cyclic number.

It is not a de Polignac number, because 123963841 - 2⁷ = 123963713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123963841.

It is not a weakly prime, because it can be changed into another prime (123963821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61981920 + 61981921.

It is an arithmetic number, because the mean of its divisors is an integer number (61981921).

Almost surely, 2^123963841 is an apocalyptic number.

It is an amenable number.

123963841 is a deficient number, since it is larger than the sum of its proper divisors (1).

123963841 is an equidigital number, since it uses as much as digits as its factorization.

123963841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 123963841 is about 11133.9050202523. The cubic root of 123963841 is about 498.6146196545.

The spelling of 123963841 in words is "one hundred twenty-three million, nine hundred sixty-three thousand, eight hundred forty-one".