1055143263 has 16 divisors (see below), whose sum is σ = 1433406816. Its totient is φ = 690278400.

The previous prime is 1055143259. The next prime is 1055143307. The reversal of 1055143263 is 3623415501.

It is not a de Polignac number, because 1055143263 - 2² = 1055143259 is a prime.

It is a super-2 number, since 2×1055143263² = 2226654610908574338, 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 1055143263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055143223) 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 15 ways as a sum of consecutive naturals, for example, 18831 + ... + 49647.

It is an arithmetic number, because the mean of its divisors is an integer number (89587926).

Almost surely, 2^1055143263 is an apocalyptic number.

1055143263 is a deficient number, since it is larger than the sum of its proper divisors (378263553).

1055143263 is a wasteful number, since it uses less digits than its factorization.

1055143263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31034.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1055143263 is about 32482.9688144418. The cubic root of 1055143263 is about 1018.0532080552.

Adding to 1055143263 its reverse (3623415501), we get a palindrome (4678558764).

The spelling of 1055143263 in words is "one billion, fifty-five million, one hundred forty-three thousand, two hundred sixty-three".