1161943 has 8 divisors (see below), whose sum is σ = 1216800. Its totient is φ = 1108128.

The previous prime is 1161931. The next prime is 1161947. The reversal of 1161943 is 3491611.

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 1161943 - 2¹³ = 1153751 is a prime.

It is a super-2 number, since 2×1161943² = 2700223070498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2793 + ... + 3181.

It is an arithmetic number, because the mean of its divisors is an integer number (152100).

2^1161943 is an apocalyptic number.

1161943 is a deficient number, since it is larger than the sum of its proper divisors (54857).

1161943 is a wasteful number, since it uses less digits than its factorization.

1161943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its digits is 648, while the sum is 25.

The square root of 1161943 is about 1077.9345991293. The cubic root of 1161943 is about 105.1303897902.

The spelling of 1161943 in words is "one million, one hundred sixty-one thousand, nine hundred forty-three".