1171994 has 4 divisors (see below), whose sum is σ = 1757994. Its totient is φ = 585996.

The previous prime is 1171991. The next prime is 1171999. The reversal of 1171994 is 4991711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4991711 = 257 ⋅19423.

It can be written as a sum of positive squares in only one way, i.e., 1129969 + 42025 = 1063^2 + 205^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1171994.

It is not an unprimeable number, because it can be changed into a prime (1171991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 292997 + ... + 293000.

2^1171994 is an apocalyptic number.

1171994 is a deficient number, since it is larger than the sum of its proper divisors (586000).

1171994 is an equidigital number, since it uses as much as digits as its factorization.

1171994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585999.

The product of its digits is 2268, while the sum is 32.

The square root of 1171994 is about 1082.5867170809. The cubic root of 1171994 is about 105.4326516993.

The spelling of 1171994 in words is "one million, one hundred seventy-one thousand, nine hundred ninety-four".