124209853 has 2 divisors, whose sum is σ = 124209854. Its totient is φ = 124209852.

The previous prime is 124209823. The next prime is 124209857. The reversal of 124209853 is 358902421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94420089 + 29789764 = 9717^2 + 5458^2 .

It is a cyclic number.

It is not a de Polignac number, because 124209853 - 2⁹ = 124209341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124209857) 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, 62104926 + 62104927.

It is an arithmetic number, because the mean of its divisors is an integer number (62104927).

Almost surely, 2^124209853 is an apocalyptic number.

It is an amenable number.

124209853 is a deficient number, since it is larger than the sum of its proper divisors (1).

124209853 is an equidigital number, since it uses as much as digits as its factorization.

124209853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 124209853 is about 11144.9474202438. The cubic root of 124209853 is about 498.9442429900.

The spelling of 124209853 in words is "one hundred twenty-four million, two hundred nine thousand, eight hundred fifty-three".