124145005 has 8 divisors (see below), whose sum is σ = 150341400. Its totient is φ = 98404416.

The previous prime is 124145003. The next prime is 124145011. The reversal of 124145005 is 500541421.

It can be written as a sum of positive squares in 4 ways, for example, as 44382244 + 79762761 = 6662^2 + 8931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124145005 - 2¹ = 124145003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124145003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113350 + ... + 114439.

It is an arithmetic number, because the mean of its divisors is an integer number (18792675).

Almost surely, 2^124145005 is an apocalyptic number.

It is an amenable number.

124145005 is a deficient number, since it is larger than the sum of its proper divisors (26196395).

124145005 is a wasteful number, since it uses less digits than its factorization.

124145005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227903.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 124145005 is about 11142.0377400187. The cubic root of 124145005 is about 498.8573975750.

Adding to 124145005 its reverse (500541421), we get a palindrome (624686426).

The spelling of 124145005 in words is "one hundred twenty-four million, one hundred forty-five thousand, five".