1327086261 has 10 divisors (see below), whose sum is σ = 1982437622. Its totient is φ = 884724120.

The previous prime is 1327086247. The next prime is 1327086263. The reversal of 1327086261 is 1626807231.

1327086261 is a `hidden beast` number, since 1 + 3 + 27 + 0 + 8 + 626 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1203743025 + 123343236 = 34695^2 + 11106^2 .

It is not a de Polignac number, because 1327086261 - 2¹³ = 1327078069 is a prime.

It is a super-3 number, since 3×1327086261³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1327086263) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8191810 + ... + 8191971.

Almost surely, 2^1327086261 is an apocalyptic number.

It is an amenable number.

1327086261 is a deficient number, since it is larger than the sum of its proper divisors (655351361).

1327086261 is an equidigital number, since it uses as much as digits as its factorization.

1327086261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16383793 (or 16383784 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1327086261 is about 36429.1951736516. The cubic root of 1327086261 is about 1098.9207764931.

The spelling of 1327086261 in words is "one billion, three hundred twenty-seven million, eighty-six thousand, two hundred sixty-one".