124123005 has 24 divisors (see below), whose sum is σ = 219727872. Its totient is φ = 64789344.

The previous prime is 124123003. The next prime is 124123007. The reversal of 124123005 is 500321421.

It is an interprime number because it is at equal distance from previous prime (124123003) and next prime (124123007).

It is not a de Polignac number, because 124123005 - 2¹ = 124123003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124123003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27229 + ... + 31458.

It is an arithmetic number, because the mean of its divisors is an integer number (9155328).

Almost surely, 2^124123005 is an apocalyptic number.

124123005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124123005 is a deficient number, since it is larger than the sum of its proper divisors (95604867).

124123005 is a wasteful number, since it uses less digits than its factorization.

124123005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58745 (or 58742 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 124123005 is about 11141.0504441906. The cubic root of 124123005 is about 498.8279279745.

Adding to 124123005 its reverse (500321421), we get a palindrome (624444426).

The spelling of 124123005 in words is "one hundred twenty-four million, one hundred twenty-three thousand, five".