1161801 has 6 divisors (see below), whose sum is σ = 1678170. Its totient is φ = 774528.

The previous prime is 1161791. The next prime is 1161829. The reversal of 1161801 is 1081611.

It can be written as a sum of positive squares in only one way, i.e., 853776 + 308025 = 924^2 + 555^2 .

It is not a de Polignac number, because 1161801 - 2⁹ = 1161289 is a prime.

It is a plaindrome in base 14.

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 5 ways as a sum of consecutive naturals, for example, 64536 + ... + 64553.

It is an arithmetic number, because the mean of its divisors is an integer number (279695).

2^1161801 is an apocalyptic number.

It is an amenable number.

1161801 is a deficient number, since it is larger than the sum of its proper divisors (516369).

1161801 is a wasteful number, since it uses less digits than its factorization.

1161801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129095 (or 129092 counting only the distinct ones).

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

The square root of 1161801 is about 1077.8687304120. The cubic root of 1161801 is about 105.1261069859.

The spelling of 1161801 in words is "one million, one hundred sixty-one thousand, eight hundred one".