1054805 has 4 divisors (see below), whose sum is σ = 1265772. Its totient is φ = 843840.

The previous prime is 1054769. The next prime is 1054813. The reversal of 1054805 is 5084501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 734449 + 320356 = 857^2 + 566^2 .

It is not a de Polignac number, because 1054805 - 2⁸ = 1054549 is a prime.

It is a super-2 number, since 2×1054805² = 2225227176050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105476 + ... + 105485.

It is an arithmetic number, because the mean of its divisors is an integer number (316443).

2^1054805 is an apocalyptic number.

It is an amenable number.

1054805 is a deficient number, since it is larger than the sum of its proper divisors (210967).

1054805 is an equidigital number, since it uses as much as digits as its factorization.

1054805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210966.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1054805 is about 1027.0370003072. The cubic root of 1054805 is about 101.7944405598.

The spelling of 1054805 in words is "one million, fifty-four thousand, eight hundred five".