1105161 has 8 divisors (see below), whose sum is σ = 1524480. Its totient is φ = 711312.

The previous prime is 1105157. The next prime is 1105163. The reversal of 1105161 is 1615011.

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

It is not a de Polignac number, because 1105161 - 2² = 1105157 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1105161.

It is not an unprimeable number, because it can be changed into a prime (1105163) 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, 6265 + ... + 6438.

It is an arithmetic number, because the mean of its divisors is an integer number (190560).

2^1105161 is an apocalyptic number.

It is an amenable number.

1105161 is a deficient number, since it is larger than the sum of its proper divisors (419319).

1105161 is a wasteful number, since it uses less digits than its factorization.

1105161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12735.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 1105161 is about 1051.2663791827. The cubic root of 1105161 is about 103.3892020695.

The spelling of 1105161 in words is "one million, one hundred five thousand, one hundred sixty-one".