105561115 has 8 divisors (see below), whose sum is σ = 138189168. Its totient is φ = 76771680.

The previous prime is 105561091. The next prime is 105561121. The reversal of 105561115 is 511165501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105561115 - 2⁵ = 105561083 is a prime.

It is a super-2 number, since 2×105561115² = 22286298000086450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105561115.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959592 + ... + 959701.

It is an arithmetic number, because the mean of its divisors is an integer number (17273646).

Almost surely, 2^105561115 is an apocalyptic number.

105561115 is a deficient number, since it is larger than the sum of its proper divisors (32628053).

105561115 is a wasteful number, since it uses less digits than its factorization.

105561115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919309.

The product of its (nonzero) digits is 750, while the sum is 25.

The square root of 105561115 is about 10274.2938930128. The cubic root of 105561115 is about 472.6082765585.

The spelling of 105561115 in words is "one hundred five million, five hundred sixty-one thousand, one hundred fifteen".