124913881 has 2 divisors, whose sum is σ = 124913882. Its totient is φ = 124913880.

The previous prime is 124913869. The next prime is 124913953. The reversal of 124913881 is 188319421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106936281 + 17977600 = 10341^2 + 4240^2 .

It is a cyclic number.

It is not a de Polignac number, because 124913881 - 2¹⁹ = 124389593 is a prime.

It is a super-3 number, since 3×124913881³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 124913881.

It is not a weakly prime, because it can be changed into another prime (124913801) 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, 62456940 + 62456941.

It is an arithmetic number, because the mean of its divisors is an integer number (62456941).

Almost surely, 2^124913881 is an apocalyptic number.

It is an amenable number.

124913881 is a deficient number, since it is larger than the sum of its proper divisors (1).

124913881 is an equidigital number, since it uses as much as digits as its factorization.

124913881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 37.

The square root of 124913881 is about 11176.4878651569. The cubic root of 124913881 is about 499.8851482869.

The spelling of 124913881 in words is "one hundred twenty-four million, nine hundred thirteen thousand, eight hundred eighty-one".