124081513 has 2 divisors, whose sum is σ = 124081514. Its totient is φ = 124081512.

The previous prime is 124081511. The next prime is 124081519. The reversal of 124081513 is 315180421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106667584 + 17413929 = 10328^2 + 4173^2 .

It is an emirp because it is prime and its reverse (315180421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124081513 - 2¹ = 124081511 is a prime.

Together with 124081511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (124081511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62040756 + 62040757.

It is an arithmetic number, because the mean of its divisors is an integer number (62040757).

Almost surely, 2^124081513 is an apocalyptic number.

It is an amenable number.

124081513 is a deficient number, since it is larger than the sum of its proper divisors (1).

124081513 is an equidigital number, since it uses as much as digits as its factorization.

124081513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 124081513 is about 11139.1881661098. The cubic root of 124081513 is about 498.7723388298.

The spelling of 124081513 in words is "one hundred twenty-four million, eighty-one thousand, five hundred thirteen".