123244505 has 8 divisors (see below), whose sum is σ = 147956424. Its totient is φ = 98553600.

The previous prime is 123244487. The next prime is 123244523. The reversal of 123244505 is 505442321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123244487) and next prime (123244523).

It can be written as a sum of positive squares in 4 ways, for example, as 21557449 + 101687056 = 4643^2 + 10084^2 .

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

It is not a de Polignac number, because 123244505 - 2¹⁸ = 122982361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14225 + ... + 21185.

It is an arithmetic number, because the mean of its divisors is an integer number (18494553).

Almost surely, 2^123244505 is an apocalyptic number.

It is an amenable number.

123244505 is a deficient number, since it is larger than the sum of its proper divisors (24711919).

123244505 is an equidigital number, since it uses as much as digits as its factorization.

123244505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10507.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 123244505 is about 11101.5541704754. The cubic root of 123244505 is about 497.6482963211.

Adding to 123244505 its reverse (505442321), we get a palindrome (628686826).

The spelling of 123244505 in words is "one hundred twenty-three million, two hundred forty-four thousand, five hundred five".