1161845 has 8 divisors (see below), whose sum is σ = 1454976. Its totient is φ = 888976.

The previous prime is 1161841. The next prime is 1161851. The reversal of 1161845 is 5481611.

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 1161845 - 2² = 1161841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161841) 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, 4937 + ... + 5166.

It is an arithmetic number, because the mean of its divisors is an integer number (181872).

2^1161845 is an apocalyptic number.

It is an amenable number.

1161845 is a deficient number, since it is larger than the sum of its proper divisors (293131).

1161845 is a wasteful number, since it uses less digits than its factorization.

1161845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10131.

The product of its digits is 960, while the sum is 26.

The square root of 1161845 is about 1077.8891408675. The cubic root of 1161845 is about 105.1274340893.

The spelling of 1161845 in words is "one million, one hundred sixty-one thousand, eight hundred forty-five".