1061181 has 24 divisors (see below), whose sum is σ = 1738464. Its totient is φ = 641520.

The previous prime is 1061171. The next prime is 1061189. The reversal of 1061181 is 1811601.

It is not a de Polignac number, because 1061181 - 2⁵ = 1061149 is a prime.

It is a super-2 number, since 2×1061181² = 2252210229522, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

1061181 is a lucky number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061189) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2475 + ... + 2871.

It is an arithmetic number, because the mean of its divisors is an integer number (72436).

2^1061181 is an apocalyptic number.

1061181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1061181 is a deficient number, since it is larger than the sum of its proper divisors (677283).

1061181 is an equidigital number, since it uses as much as digits as its factorization.

1061181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 1061181 is about 1030.1363987356. The cubic root of 1061181 is about 101.9991349408. Note that the first 3 decimals are identical.

Adding to 1061181 its reverse (1811601), we get a palindrome (2872782).

The spelling of 1061181 in words is "one million, sixty-one thousand, one hundred eighty-one".