10947581 has 2 divisors, whose sum is σ = 10947582. Its totient is φ = 10947580.

The previous prime is 10947571. The next prime is 10947611. The reversal of 10947581 is 18574901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6708100 + 4239481 = 2590^2 + 2059^2 .

It is a cyclic number.

It is not a de Polignac number, because 10947581 - 2¹⁰ = 10946557 is a prime.

It is a super-2 number, since 2×10947581² = 239699059503122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10947551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5473790 + 5473791.

It is an arithmetic number, because the mean of its divisors is an integer number (5473791).

Almost surely, 2^10947581 is an apocalyptic number.

It is an amenable number.

10947581 is a deficient number, since it is larger than the sum of its proper divisors (1).

10947581 is an equidigital number, since it uses as much as digits as its factorization.

10947581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 10947581 is about 3308.7128917451. The cubic root of 10947581 is about 222.0441772862.

The spelling of 10947581 in words is "ten million, nine hundred forty-seven thousand, five hundred eighty-one".