124107281 has 2 divisors, whose sum is σ = 124107282. Its totient is φ = 124107280.

The previous prime is 124107271. The next prime is 124107337. The reversal of 124107281 is 182701421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101687056 + 22420225 = 10084^2 + 4735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124107281 is a prime.

It is a super-2 number, since 2×124107281² = 30805234394425922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 124107281.

It is not a weakly prime, because it can be changed into another prime (124107251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62053640 + 62053641.

It is an arithmetic number, because the mean of its divisors is an integer number (62053641).

Almost surely, 2^124107281 is an apocalyptic number.

It is an amenable number.

124107281 is a deficient number, since it is larger than the sum of its proper divisors (1).

124107281 is an equidigital number, since it uses as much as digits as its factorization.

124107281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 124107281 is about 11140.3447433192. The cubic root of 124107281 is about 498.8068631134.

It can be divided in two parts, 12410 and 7281, that added together give a palindrome (19691).

The spelling of 124107281 in words is "one hundred twenty-four million, one hundred seven thousand, two hundred eighty-one".