1191485 has 8 divisors (see below), whose sum is σ = 1476096. Its totient is φ = 922320.

The previous prime is 1191481. The next prime is 1191499. The reversal of 1191485 is 5841911.

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

It is not a de Polignac number, because 1191485 - 2² = 1191481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1191481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3689 + ... + 3998.

It is an arithmetic number, because the mean of its divisors is an integer number (184512).

2^1191485 is an apocalyptic number.

It is an amenable number.

1191485 is a deficient number, since it is larger than the sum of its proper divisors (284611).

1191485 is an equidigital number, since it uses as much as digits as its factorization.

1191485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723.

The product of its digits is 1440, while the sum is 29.

The square root of 1191485 is about 1091.5516478848. The cubic root of 1191485 is about 106.0139117851.

It can be divided in two parts, 119 and 1485, that multiplied together give a triangular number (176715 = T₅₉₄).

The spelling of 1191485 in words is "one million, one hundred ninety-one thousand, four hundred eighty-five".