124923899 has 2 divisors, whose sum is σ = 124923900. Its totient is φ = 124923898.

The previous prime is 124923863. The next prime is 124923937. The reversal of 124923899 is 998329421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124923899 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (124923839) 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, 62461949 + 62461950.

It is an arithmetic number, because the mean of its divisors is an integer number (62461950).

Almost surely, 2^124923899 is an apocalyptic number.

124923899 is a deficient number, since it is larger than the sum of its proper divisors (1).

124923899 is an equidigital number, since it uses as much as digits as its factorization.

124923899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The square root of 124923899 is about 11176.9360291629. The cubic root of 124923899 is about 499.8985114015.

The spelling of 124923899 in words is "one hundred twenty-four million, nine hundred twenty-three thousand, eight hundred ninety-nine".