124815001 has 2 divisors, whose sum is σ = 124815002. Its totient is φ = 124815000.

The previous prime is 124814999. The next prime is 124815011. The reversal of 124815001 is 100518421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87909376 + 36905625 = 9376^2 + 6075^2 .

It is a cyclic number.

It is not a de Polignac number, because 124815001 - 2¹ = 124814999 is a prime.

It is a super-3 number, since 3×124815001³ (a number of 25 digits) contains 333 as substring.

Together with 124814999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (124815011) 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, 62407500 + 62407501.

It is an arithmetic number, because the mean of its divisors is an integer number (62407501).

Almost surely, 2^124815001 is an apocalyptic number.

It is an amenable number.

124815001 is a deficient number, since it is larger than the sum of its proper divisors (1).

124815001 is an equidigital number, since it uses as much as digits as its factorization.

124815001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 124815001 is about 11172.0634172923. The cubic root of 124815001 is about 499.7532128789.

The spelling of 124815001 in words is "one hundred twenty-four million, eight hundred fifteen thousand, one".