124552121 has 2 divisors, whose sum is σ = 124552122. Its totient is φ = 124552120.

The previous prime is 124552117. The next prime is 124552133. The reversal of 124552121 is 121255421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108910096 + 15642025 = 10436^2 + 3955^2 .

It is a cyclic number.

It is not a de Polignac number, because 124552121 - 2² = 124552117 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124552921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62276060 + 62276061.

It is an arithmetic number, because the mean of its divisors is an integer number (62276061).

Almost surely, 2^124552121 is an apocalyptic number.

It is an amenable number.

124552121 is a deficient number, since it is larger than the sum of its proper divisors (1).

124552121 is an equidigital number, since it uses as much as digits as its factorization.

124552121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 800, while the sum is 23.

The square root of 124552121 is about 11160.2921556741. The cubic root of 124552121 is about 499.4021133481.

The spelling of 124552121 in words is "one hundred twenty-four million, five hundred fifty-two thousand, one hundred twenty-one".