124293139 has 2 divisors, whose sum is σ = 124293140. Its totient is φ = 124293138.

The previous prime is 124293067. The next prime is 124293161. The reversal of 124293139 is 931392421.

It is a strong prime.

It is an emirp because it is prime and its reverse (931392421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124293139 - 2²³ = 115904531 is a prime.

It is not a weakly prime, because it can be changed into another prime (124293179) 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, 62146569 + 62146570.

It is an arithmetic number, because the mean of its divisors is an integer number (62146570).

Almost surely, 2^124293139 is an apocalyptic number.

124293139 is a deficient number, since it is larger than the sum of its proper divisors (1).

124293139 is an equidigital number, since it uses as much as digits as its factorization.

124293139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 124293139 is about 11148.6832854826. The cubic root of 124293139 is about 499.0557365222.

The spelling of 124293139 in words is "one hundred twenty-four million, two hundred ninety-three thousand, one hundred thirty-nine".