1191478 has 8 divisors (see below), whose sum is σ = 1810080. Its totient is φ = 588120.

The previous prime is 1191457. The next prime is 1191481. The reversal of 1191478 is 8741911.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3613 + ... + 3928.

It is an arithmetic number, because the mean of its divisors is an integer number (226260).

2^1191478 is an apocalyptic number.

1191478 is a deficient number, since it is larger than the sum of its proper divisors (618602).

1191478 is an equidigital number, since it uses as much as digits as its factorization.

1191478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7622.

The product of its digits is 2016, while the sum is 31.

The square root of 1191478 is about 1091.5484414354. The cubic root of 1191478 is about 106.0137041734.

The spelling of 1191478 in words is "one million, one hundred ninety-one thousand, four hundred seventy-eight".