1161363 has 16 divisors (see below), whose sum is σ = 1831680. Its totient is φ = 640416.

The previous prime is 1161343. The next prime is 1161371. The reversal of 1161363 is 3631611.

It is not a de Polignac number, because 1161363 - 2⁵ = 1161331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1161313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345 + ... + 1562.

It is an arithmetic number, because the mean of its divisors is an integer number (114480).

2^1161363 is an apocalyptic number.

1161363 is a deficient number, since it is larger than the sum of its proper divisors (670317).

1161363 is a wasteful number, since it uses less digits than its factorization.

1161363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946.

The product of its digits is 324, while the sum is 21.

The square root of 1161363 is about 1077.6655325285. The cubic root of 1161363 is about 105.1128944471.

Adding to 1161363 its reverse (3631611), we get a palindrome (4792974).

The spelling of 1161363 in words is "one million, one hundred sixty-one thousand, three hundred sixty-three".