27261313 has 4 divisors (see below), whose sum is σ = 27279828. Its totient is φ = 27242800.

The previous prime is 27261301. The next prime is 27261317. The reversal of 27261313 is 31316272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24275329 + 2985984 = 4927^2 + 1728^2 .

It is a cyclic number.

It is not a de Polignac number, because 27261313 - 2⁵ = 27261281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27261317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6838 + ... + 10063.

It is an arithmetic number, because the mean of its divisors is an integer number (6819957).

Almost surely, 2^27261313 is an apocalyptic number.

It is an amenable number.

27261313 is a deficient number, since it is larger than the sum of its proper divisors (18515).

27261313 is a wasteful number, since it uses less digits than its factorization.

27261313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18514.

The product of its digits is 1512, while the sum is 25.

The square root of 27261313 is about 5221.2367308905. The cubic root of 27261313 is about 300.9647203163.

Adding to 27261313 its reverse (31316272), we get a palindrome (58577585).

The spelling of 27261313 in words is "twenty-seven million, two hundred sixty-one thousand, three hundred thirteen".