1006455 has 16 divisors (see below), whose sum is σ = 1622880. Its totient is φ = 532608.

The previous prime is 1006441. The next prime is 1006463. The reversal of 1006455 is 5546001.

It is a happy number.

It is not a de Polignac number, because 1006455 - 2⁶ = 1006391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3289 + ... + 3581.

It is an arithmetic number, because the mean of its divisors is an integer number (101430).

2^1006455 is an apocalyptic number.

1006455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1006455 is a deficient number, since it is larger than the sum of its proper divisors (616425).

1006455 is a wasteful number, since it uses less digits than its factorization.

1006455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1006455 is about 1003.2223083644. Note that the first 3 decimals coincide. The cubic root of 1006455 is about 100.2147053529.

It can be divided in two parts, 100 and 6455, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 1006455 in words is "one million, six thousand, four hundred fifty-five".