1163801 has 4 divisors (see below), whose sum is σ = 1166004. Its totient is φ = 1161600.

The previous prime is 1163791. The next prime is 1163821. The reversal of 1163801 is 1083611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 672400 + 491401 = 820^2 + 701^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163801 - 2⁶ = 1163737 is a prime.

It is a deceptive number, since it divides R_1163800.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221 + ... + 1541.

It is an arithmetic number, because the mean of its divisors is an integer number (291501).

2^1163801 is an apocalyptic number.

1163801 is the 881-st pentagonal number.

It is an amenable number.

1163801 is a deficient number, since it is larger than the sum of its proper divisors (2203).

1163801 is an equidigital number, since it uses as much as digits as its factorization.

1163801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1163801 is about 1078.7960882391. The cubic root of 1163801 is about 105.1863960491.

The spelling of 1163801 in words is "one million, one hundred sixty-three thousand, eight hundred one".