105511061 has 8 divisors (see below), whose sum is σ = 113249304. Its totient is φ = 97943040.

The previous prime is 105511039. The next prime is 105511067. The reversal of 105511061 is 160115501.

It can be written as a sum of positive squares in 4 ways, for example, as 24690961 + 80820100 = 4969^2 + 8990^2 .

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 105511061 - 2¹⁰ = 105510037 is a prime.

It is a super-2 number, since 2×105511061² = 22265167986691442, 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 (105511067) 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, 41270 + ... + 43751.

It is an arithmetic number, because the mean of its divisors is an integer number (14156163).

Almost surely, 2^105511061 is an apocalyptic number.

It is an amenable number.

105511061 is a deficient number, since it is larger than the sum of its proper divisors (7738243).

105511061 is an equidigital number, since it uses as much as digits as its factorization.

105511061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85111.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 105511061 is about 10271.8577190302. The cubic root of 105511061 is about 472.5335657313.

Adding to 105511061 its reverse (160115501), we get a palindrome (265626562).

The spelling of 105511061 in words is "one hundred five million, five hundred eleven thousand, sixty-one".