1056205 has 4 divisors (see below), whose sum is σ = 1267452. Its totient is φ = 844960.

The previous prime is 1056203. The next prime is 1056217. The reversal of 1056205 is 5026501.

It is a happy number.

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 248004 + 808201 = 498^2 + 899^2 .

It is not a de Polignac number, because 1056205 - 2¹ = 1056203 is a prime.

It is a super-2 number, since 2×1056205² = 2231138004050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105616 + ... + 105625.

It is an arithmetic number, because the mean of its divisors is an integer number (316863).

2^1056205 is an apocalyptic number.

It is an amenable number.

1056205 is a deficient number, since it is larger than the sum of its proper divisors (211247).

1056205 is an equidigital number, since it uses as much as digits as its factorization.

1056205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211246.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1056205 is about 1027.7183466300. The cubic root of 1056205 is about 101.8394565305.

It can be divided in two parts, 105620 and 5, that added together give a square (105625 = 325²).

The spelling of 1056205 in words is "one million, fifty-six thousand, two hundred five".