124127993 has 4 divisors (see below), whose sum is σ = 135412368. Its totient is φ = 112843620.

The previous prime is 124127989. The next prime is 124128013. The reversal of 124127993 is 399721421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124127993 - 2² = 124127989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124127963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5642171 + ... + 5642192.

It is an arithmetic number, because the mean of its divisors is an integer number (33853092).

Almost surely, 2^124127993 is an apocalyptic number.

It is an amenable number.

124127993 is a deficient number, since it is larger than the sum of its proper divisors (11284375).

124127993 is a wasteful number, since it uses less digits than its factorization.

124127993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11284374.

The product of its digits is 27216, while the sum is 38.

The square root of 124127993 is about 11141.2742987506. The cubic root of 124127993 is about 498.8346098419.

The spelling of 124127993 in words is "one hundred twenty-four million, one hundred twenty-seven thousand, nine hundred ninety-three".