1204263543 has 12 divisors (see below), whose sum is σ = 1867837560. Its totient is φ = 688150512.

The previous prime is 1204263523. The next prime is 1204263607. The reversal of 1204263543 is 3453624021.

It is not a de Polignac number, because 1204263543 - 2¹⁸ = 1204001399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1204263543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204263503) 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 11 ways as a sum of consecutive naturals, for example, 4095988 + ... + 4096281.

It is an arithmetic number, because the mean of its divisors is an integer number (155653130).

Almost surely, 2^1204263543 is an apocalyptic number.

1204263543 is a deficient number, since it is larger than the sum of its proper divisors (663574017).

1204263543 is an equidigital number, since it uses as much as digits as its factorization.

1204263543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8192286 (or 8192279 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 1204263543 is about 34702.5005295008. The cubic root of 1204263543 is about 1063.9156067643.

Adding to 1204263543 its reverse (3453624021), we get a palindrome (4657887564).

The spelling of 1204263543 in words is "one billion, two hundred four million, two hundred sixty-three thousand, five hundred forty-three".