124043399 has 2 divisors, whose sum is σ = 124043400. Its totient is φ = 124043398.

The previous prime is 124043357. The next prime is 124043443. The reversal of 124043399 is 993340421.

It is a weak prime.

It is an emirp because it is prime and its reverse (993340421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124043399 - 2²⁴ = 107266183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124043099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62021699 + 62021700.

It is an arithmetic number, because the mean of its divisors is an integer number (62021700).

Almost surely, 2^124043399 is an apocalyptic number.

124043399 is a deficient number, since it is larger than the sum of its proper divisors (1).

124043399 is an equidigital number, since it uses as much as digits as its factorization.

124043399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 124043399 is about 11137.4772278106. The cubic root of 124043399 is about 498.7212644588.

The spelling of 124043399 in words is "one hundred twenty-four million, forty-three thousand, three hundred ninety-nine".