1056243 has 4 divisors (see below), whose sum is σ = 1408328. Its totient is φ = 704160.

The previous prime is 1056241. The next prime is 1056247. The reversal of 1056243 is 3426501.

It is a happy number.

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

It is not a de Polignac number, because 1056243 - 2¹ = 1056241 is a prime.

It is a super-2 number, since 2×1056243² = 2231298550098, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056241) 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 3 ways as a sum of consecutive naturals, for example, 176038 + ... + 176043.

It is an arithmetic number, because the mean of its divisors is an integer number (352082).

2^1056243 is an apocalyptic number.

1056243 is a deficient number, since it is larger than the sum of its proper divisors (352085).

1056243 is an equidigital number, since it uses as much as digits as its factorization.

1056243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352084.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1056243 is about 1027.7368340193. The cubic root of 1056243 is about 101.8406778379.

The spelling of 1056243 in words is "one million, fifty-six thousand, two hundred forty-three".