1166455 has 8 divisors (see below), whose sum is σ = 1482192. Its totient is φ = 878208.

The previous prime is 1166453. The next prime is 1166479. The reversal of 1166455 is 5546611.

1166455 = 481² + 482² + ... + 485².

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

It is a cyclic number.

It is not a de Polignac number, because 1166455 - 2¹ = 1166453 is a prime.

It is a Duffinian number.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6777 + ... + 6946.

It is an arithmetic number, because the mean of its divisors is an integer number (185274).

2^1166455 is an apocalyptic number.

1166455 is a deficient number, since it is larger than the sum of its proper divisors (315737).

1166455 is a wasteful number, since it uses less digits than its factorization.

1166455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13745.

The product of its digits is 3600, while the sum is 28.

The square root of 1166455 is about 1080.0254626628. The cubic root of 1166455 is about 105.2662930864.

It can be divided in two parts, 11 and 66455, that added together give a palindrome (66466).

The spelling of 1166455 in words is "one million, one hundred sixty-six thousand, four hundred fifty-five".