1056256243 has 8 divisors (see below), whose sum is σ = 1207900512. Its totient is φ = 904799616.

The previous prime is 1056256237. The next prime is 1056256247. The reversal of 1056256243 is 3426526501.

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

It is not a de Polignac number, because 1056256243 - 2⁹ = 1056255731 is a prime.

It is a super-2 number, since 2×1056256243² = 2231354501752950098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1056256199 and 1056256208.

It is not an unprimeable number, because it can be changed into a prime (1056256247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34630 + ... + 57547.

It is an arithmetic number, because the mean of its divisors is an integer number (150987564).

Almost surely, 2^1056256243 is an apocalyptic number.

1056256243 is a deficient number, since it is larger than the sum of its proper divisors (151644269).

1056256243 is an equidigital number, since it uses as much as digits as its factorization.

1056256243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93821.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 1056256243 is about 32500.0960460119. The cubic root of 1056256243 is about 1018.4110345667.

The spelling of 1056256243 in words is "one billion, fifty-six million, two hundred fifty-six thousand, two hundred forty-three".