1191465 has 48 divisors (see below), whose sum is σ = 2358720. Its totient is φ = 551040.

The previous prime is 1191457. The next prime is 1191481. The reversal of 1191465 is 5641911.

It is not a de Polignac number, because 1191465 - 2³ = 1191457 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14314 + ... + 14396.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2^1191465 is an apocalyptic number.

1191465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1191465 is a deficient number, since it is larger than the sum of its proper divisors (1167255).

1191465 is a wasteful number, since it uses less digits than its factorization.

1191465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 131 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 1191465 is about 1091.5424865758. The cubic root of 1191465 is about 106.0133186065.

The spelling of 1191465 in words is "one million, one hundred ninety-one thousand, four hundred sixty-five".