124626661 has 2 divisors, whose sum is σ = 124626662. Its totient is φ = 124626660.

The previous prime is 124626647. The next prime is 124626679. The reversal of 124626661 is 166626421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110376036 + 14250625 = 10506^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 124626661 - 2⁵ = 124626629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124626641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62313330 + 62313331.

It is an arithmetic number, because the mean of its divisors is an integer number (62313331).

Almost surely, 2^124626661 is an apocalyptic number.

It is an amenable number.

124626661 is a deficient number, since it is larger than the sum of its proper divisors (1).

124626661 is an equidigital number, since it uses as much as digits as its factorization.

124626661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The square root of 124626661 is about 11163.6311744880. The cubic root of 124626661 is about 499.5017182622.

The spelling of 124626661 in words is "one hundred twenty-four million, six hundred twenty-six thousand, six hundred sixty-one".