1056845 has 4 divisors (see below), whose sum is σ = 1268220. Its totient is φ = 845472.

The previous prime is 1056833. The next prime is 1056863. The reversal of 1056845 is 5486501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5486501 = 103 ⋅53267.

It can be written as a sum of positive squares in 2 ways, for example, as 426409 + 630436 = 653^2 + 794^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056845 - 2⁴ = 1056829 is a prime.

It is a super-2 number, since 2×1056845² = 2233842708050, which contains 22 as substring.

It is a congruent 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, 105680 + ... + 105689.

It is an arithmetic number, because the mean of its divisors is an integer number (317055).

2^1056845 is an apocalyptic number.

It is an amenable number.

1056845 is a deficient number, since it is larger than the sum of its proper divisors (211375).

1056845 is an equidigital number, since it uses as much as digits as its factorization.

1056845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211374.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1056845 is about 1028.0296688326. The cubic root of 1056845 is about 101.8600220117.

The spelling of 1056845 in words is "one million, fifty-six thousand, eight hundred forty-five".