1055784239 has 2 divisors, whose sum is σ = 1055784240. Its totient is φ = 1055784238.

The previous prime is 1055784217. The next prime is 1055784259. The reversal of 1055784239 is 9324875501.

It is a strong prime.

It is an emirp because it is prime and its reverse (9324875501) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055784239 is a prime.

It is a super-2 number, since 2×1055784239² = 2229360718641618242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055784239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055784259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527892119 + 527892120.

It is an arithmetic number, because the mean of its divisors is an integer number (527892120).

Almost surely, 2^1055784239 is an apocalyptic number.

1055784239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055784239 is an equidigital number, since it uses as much as digits as its factorization.

1055784239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 1055784239 is about 32492.8336560541. The cubic root of 1055784239 is about 1018.2593145320.

The spelling of 1055784239 in words is "one billion, fifty-five million, seven hundred eighty-four thousand, two hundred thirty-nine".