124256641 has 2 divisors, whose sum is σ = 124256642. Its totient is φ = 124256640.

The previous prime is 124256623. The next prime is 124256647. The reversal of 124256641 is 146652421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90326016 + 33930625 = 9504^2 + 5825^2 .

It is a cyclic number.

It is not a de Polignac number, because 124256641 - 2¹⁹ = 123732353 is a prime.

It is not a weakly prime, because it can be changed into another prime (124256647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62128320 + 62128321.

It is an arithmetic number, because the mean of its divisors is an integer number (62128321).

Almost surely, 2^124256641 is an apocalyptic number.

It is an amenable number.

124256641 is a deficient number, since it is larger than the sum of its proper divisors (1).

124256641 is an equidigital number, since it uses as much as digits as its factorization.

124256641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 31.

The square root of 124256641 is about 11147.0462903856. The cubic root of 124256641 is about 499.0068834115.

The spelling of 124256641 in words is "one hundred twenty-four million, two hundred fifty-six thousand, six hundred forty-one".