124520993 has 2 divisors, whose sum is σ = 124520994. Its totient is φ = 124520992.

The previous prime is 124520989. The next prime is 124521013. The reversal of 124520993 is 399025421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62615569 + 61905424 = 7913^2 + 7868^2 .

It is a cyclic number.

It is not a de Polignac number, because 124520993 - 2² = 124520989 is a prime.

It is a Chen prime.

It is equal to p_7084475 and since 124520993 and 7084475 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (124520953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62260496 + 62260497.

It is an arithmetic number, because the mean of its divisors is an integer number (62260497).

Almost surely, 2^124520993 is an apocalyptic number.

It is an amenable number.

124520993 is a deficient number, since it is larger than the sum of its proper divisors (1).

124520993 is an equidigital number, since it uses as much as digits as its factorization.

124520993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 124520993 is about 11158.8974813823. The cubic root of 124520993 is about 499.3605064447.

The spelling of 124520993 in words is "one hundred twenty-four million, five hundred twenty thousand, nine hundred ninety-three".