13127305 has 8 divisors (see below), whose sum is σ = 16050312. Its totient is φ = 10303488.

The previous prime is 13127293. The next prime is 13127311. The reversal of 13127305 is 50372131.

It can be written as a sum of positive squares in 4 ways, for example, as 2157961 + 10969344 = 1469^2 + 3312^2 .

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 13127305 - 2⁹ = 13126793 is a prime.

It is a super-2 number, since 2×13127305² = 344652273126050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

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, 24504 + ... + 25033.

It is an arithmetic number, because the mean of its divisors is an integer number (2006289).

Almost surely, 2^13127305 is an apocalyptic number.

It is an amenable number.

13127305 is a deficient number, since it is larger than the sum of its proper divisors (2923007).

13127305 is an equidigital number, since it uses as much as digits as its factorization.

13127305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49595.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 13127305 is about 3623.1622928045. The cubic root of 13127305 is about 235.8985068229.

Adding to 13127305 its reverse (50372131), we get a palindrome (63499436).

The spelling of 13127305 in words is "thirteen million, one hundred twenty-seven thousand, three hundred five".