124252399 has 2 divisors, whose sum is σ = 124252400. Its totient is φ = 124252398.

The previous prime is 124252397. The next prime is 124252421. The reversal of 124252399 is 993252421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124252399 - 2¹ = 124252397 is a prime.

Together with 124252397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124252391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62126199 + 62126200.

It is an arithmetic number, because the mean of its divisors is an integer number (62126200).

Almost surely, 2^124252399 is an apocalyptic number.

124252399 is a deficient number, since it is larger than the sum of its proper divisors (1).

124252399 is an equidigital number, since it uses as much as digits as its factorization.

124252399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 124252399 is about 11146.8560141414. The cubic root of 124252399 is about 499.0012048115.

The spelling of 124252399 in words is "one hundred twenty-four million, two hundred fifty-two thousand, three hundred ninety-nine".