1061805 has 16 divisors (see below), whose sum is σ = 1724544. Its totient is φ = 557760.

The previous prime is 1061783. The next prime is 1061807. The reversal of 1061805 is 5081601.

It is not a de Polignac number, because 1061805 - 2⁵ = 1061773 is a prime.

It is a super-2 number, since 2×1061805² = 2254859716050, which contains 22 as substring.

1061805 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061807) 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, 567 + ... + 1563.

It is an arithmetic number, because the mean of its divisors is an integer number (107784).

2^1061805 is an apocalyptic number.

1061805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1061805 is a deficient number, since it is larger than the sum of its proper divisors (662739).

1061805 is an equidigital number, since it uses as much as digits as its factorization.

1061805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1061805 is about 1030.4392267378. The cubic root of 1061805 is about 102.0191236731.

The spelling of 1061805 in words is "one million, sixty-one thousand, eight hundred five".