124999943 has 2 divisors, whose sum is σ = 124999944. Its totient is φ = 124999942.

The previous prime is 124999933. The next prime is 124999961. The reversal of 124999943 is 349999421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124999943 - 2¹⁸ = 124737799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124999891 and 124999900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124999933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62499971 + 62499972.

It is an arithmetic number, because the mean of its divisors is an integer number (62499972).

Almost surely, 2^124999943 is an apocalyptic number.

124999943 is a deficient number, since it is larger than the sum of its proper divisors (1).

124999943 is an equidigital number, since it uses as much as digits as its factorization.

124999943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 50.

The square root of 124999943 is about 11180.3373383812. The cubic root of 124999943 is about 499.9999240000. Note that the first 4 decimals are identical.

The spelling of 124999943 in words is "one hundred twenty-four million, nine hundred ninety-nine thousand, nine hundred forty-three".