124312399 has 2 divisors, whose sum is σ = 124312400. Its totient is φ = 124312398.

The previous prime is 124312361. The next prime is 124312417. The reversal of 124312399 is 993213421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124312399 - 2⁷ = 124312271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124312499) 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, 62156199 + 62156200.

It is an arithmetic number, because the mean of its divisors is an integer number (62156200).

Almost surely, 2^124312399 is an apocalyptic number.

124312399 is a deficient number, since it is larger than the sum of its proper divisors (1).

124312399 is an equidigital number, since it uses as much as digits as its factorization.

124312399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 124312399 is about 11149.5470311578. The cubic root of 124312399 is about 499.0815124611.

The spelling of 124312399 in words is "one hundred twenty-four million, three hundred twelve thousand, three hundred ninety-nine".