10861181 has 4 divisors (see below), whose sum is σ = 11500092. Its totient is φ = 10222272.

The previous prime is 10861163. The next prime is 10861199. The reversal of 10861181 is 18116801.

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

It is an interprime number because it is at equal distance from previous prime (10861163) and next prime (10861199).

It can be written as a sum of positive squares in 2 ways, for example, as 6996025 + 3865156 = 2645^2 + 1966^2 .

It is a cyclic number.

It is not a de Polignac number, because 10861181 - 2⁶ = 10861117 is a prime.

It is a super-2 number, since 2×10861181² = 235930505429522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10861181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10861121) 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, 319430 + ... + 319463.

It is an arithmetic number, because the mean of its divisors is an integer number (2875023).

Almost surely, 2^10861181 is an apocalyptic number.

It is an amenable number.

10861181 is a deficient number, since it is larger than the sum of its proper divisors (638911).

10861181 is an equidigital number, since it uses as much as digits as its factorization.

10861181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638910.

The product of its (nonzero) digits is 384, while the sum is 26.

The square root of 10861181 is about 3295.6305921629. The cubic root of 10861181 is about 221.4584981701.

Adding to 10861181 its reverse (18116801), we get a palindrome (28977982).

The spelling of 10861181 in words is "ten million, eight hundred sixty-one thousand, one hundred eighty-one".