124097021 has 2 divisors, whose sum is σ = 124097022. Its totient is φ = 124097020.

The previous prime is 124096993. The next prime is 124097027. The reversal of 124097021 is 120790421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91891396 + 32205625 = 9586^2 + 5675^2 .

It is a cyclic number.

It is not a de Polignac number, because 124097021 - 2¹⁰ = 124095997 is a prime.

It is a super-3 number, since 3×124097021³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124097027) 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, 62048510 + 62048511.

It is an arithmetic number, because the mean of its divisors is an integer number (62048511).

Almost surely, 2^124097021 is an apocalyptic number.

It is an amenable number.

124097021 is a deficient number, since it is larger than the sum of its proper divisors (1).

124097021 is an equidigital number, since it uses as much as digits as its factorization.

124097021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 124097021 is about 11139.8842453591. The cubic root of 124097021 is about 498.7931172117.

The spelling of 124097021 in words is "one hundred twenty-four million, ninety-seven thousand, twenty-one".