124144165 has 8 divisors (see below), whose sum is σ = 151014168. Its totient is φ = 97954560.

The previous prime is 124144127. The next prime is 124144169. The reversal of 124144165 is 561441421.

It is a Cunningham number, because it is equal to 11142²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 44702596 + 79441569 = 6686^2 + 8913^2 .

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

It is not a de Polignac number, because 124144165 - 2⁷ = 124144037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124144169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169696 + ... + 170425.

It is an arithmetic number, because the mean of its divisors is an integer number (18876771).

Almost surely, 2^124144165 is an apocalyptic number.

It is an amenable number.

124144165 is a deficient number, since it is larger than the sum of its proper divisors (26870003).

124144165 is an equidigital number, since it uses as much as digits as its factorization.

124144165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340199.

The product of its digits is 3840, while the sum is 28.

The square root of 124144165 is about 11142.0000448752. Note that the first 4 decimals coincide. The cubic root of 124144165 is about 498.8562724360.

Adding to 124144165 its reverse (561441421), we get a palindrome (685585586).

The spelling of 124144165 in words is "one hundred twenty-four million, one hundred forty-four thousand, one hundred sixty-five".