1086181 has 8 divisors (see below), whose sum is σ = 1159704. Its totient is φ = 1013760.

The previous prime is 1086179. The next prime is 1086191. The reversal of 1086181 is 1816801.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25281 + 1060900 = 159^2 + 1030^2 .

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 1086181 - 2¹ = 1086179 is a prime.

It is a super-2 number, since 2×1086181² = 2359578329522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2901 + ... + 3253.

It is an arithmetic number, because the mean of its divisors is an integer number (144963).

2^1086181 is an apocalyptic number.

It is an amenable number.

1086181 is a deficient number, since it is larger than the sum of its proper divisors (73523).

1086181 is a wasteful number, since it uses less digits than its factorization.

1086181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 1086181 is about 1042.2000767607. The cubic root of 1086181 is about 102.7939135016.

The spelling of 1086181 in words is "one million, eighty-six thousand, one hundred eighty-one".