1005455 has 16 divisors (see below), whose sum is σ = 1336608. Its totient is φ = 720000.

The previous prime is 1005439. The next prime is 1005457. The reversal of 1005455 is 5545001.

It is not a de Polignac number, because 1005455 - 2⁴ = 1005439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5465 + ... + 5645.

It is an arithmetic number, because the mean of its divisors is an integer number (83538).

2^1005455 is an apocalyptic number.

1005455 is a deficient number, since it is larger than the sum of its proper divisors (331153).

1005455 is a wasteful number, since it uses less digits than its factorization.

1005455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 1005455 is about 1002.7237904827. The cubic root of 1005455 is about 100.1815036981.

It can be divided in two parts, 100 and 5455, that added together give a palindrome (5555).

The spelling of 1005455 in words is "one million, five thousand, four hundred fifty-five".