1056445 has 8 divisors (see below), whose sum is σ = 1365336. Its totient is φ = 780096.

The previous prime is 1056443. The next prime is 1056463. The reversal of 1056445 is 5446501.

It can be written as a sum of positive squares in 4 ways, for example, as 52441 + 1004004 = 229^2 + 1002^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1056445 - 2¹ = 1056443 is a prime.

It is a super-2 number, since 2×1056445² = 2232152076050, 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 (1056443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8062 + ... + 8191.

It is an arithmetic number, because the mean of its divisors is an integer number (170667).

2^1056445 is an apocalyptic number.

It is an amenable number.

1056445 is a deficient number, since it is larger than the sum of its proper divisors (308891).

1056445 is a wasteful number, since it uses less digits than its factorization.

1056445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16271.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1056445 is about 1027.8351035064. The cubic root of 1056445 is about 101.8471695593.

It can be divided in two parts, 10564 and 45, that added together give a square (10609 = 103²).

The spelling of 1056445 in words is "one million, fifty-six thousand, four hundred forty-five".