1191994 has 8 divisors (see below), whose sum is σ = 1800288. Its totient is φ = 591900.

The previous prime is 1191991. The next prime is 1192013. The reversal of 1191994 is 4991911.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1191991) 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, 1672 + ... + 2275.

It is an arithmetic number, because the mean of its divisors is an integer number (225036).

2^1191994 is an apocalyptic number.

1191994 is a deficient number, since it is larger than the sum of its proper divisors (608294).

1191994 is a wasteful number, since it uses less digits than its factorization.

1191994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100.

The product of its digits is 2916, while the sum is 34.

The square root of 1191994 is about 1091.7847773256. The cubic root of 1191994 is about 106.0290059460.

The spelling of 1191994 in words is "one million, one hundred ninety-one thousand, nine hundred ninety-four".