1040555 has 4 divisors (see below), whose sum is σ = 1248672. Its totient is φ = 832440.

The previous prime is 1040531. The next prime is 1040563. The reversal of 1040555 is 5550401.

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

It is not a de Polignac number, because 1040555 - 2¹² = 1036459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104051 + ... + 104060.

It is an arithmetic number, because the mean of its divisors is an integer number (312168).

2^1040555 is an apocalyptic number.

1040555 is a deficient number, since it is larger than the sum of its proper divisors (208117).

1040555 is an equidigital number, since it uses as much as digits as its factorization.

1040555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208116.

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

The square root of 1040555 is about 1020.0759775625. The cubic root of 1040555 is about 101.3339597241. Note that the first 3 decimals are identical.

Adding to 1040555 its reverse (5550401), we get a palindrome (6590956).

It can be divided in two parts, 10405 and 55, that multiplied together give a palindrome (572275).

The spelling of 1040555 in words is "one million, forty thousand, five hundred fifty-five".