124331861 has 2 divisors, whose sum is σ = 124331862. Its totient is φ = 124331860.

The previous prime is 124331827. The next prime is 124331887. The reversal of 124331861 is 168133421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81180100 + 43151761 = 9010^2 + 6569^2 .

It is a cyclic number.

It is not a de Polignac number, because 124331861 - 2⁶ = 124331797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124331161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62165930 + 62165931.

It is an arithmetic number, because the mean of its divisors is an integer number (62165931).

Almost surely, 2^124331861 is an apocalyptic number.

It is an amenable number.

124331861 is a deficient number, since it is larger than the sum of its proper divisors (1).

124331861 is an equidigital number, since it uses as much as digits as its factorization.

124331861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 124331861 is about 11150.4197678832. The cubic root of 124331861 is about 499.1075560353.

The spelling of 124331861 in words is "one hundred twenty-four million, three hundred thirty-one thousand, eight hundred sixty-one".