1057288243 has 4 divisors (see below), whose sum is σ = 1153405368. Its totient is φ = 961171120.

The previous prime is 1057288241. The next prime is 1057288277. The reversal of 1057288243 is 3428827501.

It is a happy number.

1057288243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1057288243 - 2¹ = 1057288241 is a prime.

It is a super-2 number, since 2×1057288243² = 2235716857572054098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1057288196 and 1057288205.

It is not an unprimeable number, because it can be changed into a prime (1057288241) 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, 48058546 + ... + 48058567.

It is an arithmetic number, because the mean of its divisors is an integer number (288351342).

Almost surely, 2^1057288243 is an apocalyptic number.

1057288243 is a deficient number, since it is larger than the sum of its proper divisors (96117125).

1057288243 is an equidigital number, since it uses as much as digits as its factorization.

1057288243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96117124.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 1057288243 is about 32515.9690459934. The cubic root of 1057288243 is about 1018.7426012335.

The spelling of 1057288243 in words is "one billion, fifty-seven million, two hundred eighty-eight thousand, two hundred forty-three".