1205234055 has 24 divisors (see below), whose sum is σ = 2161111680. Its totient is φ = 620625600.

The previous prime is 1205233993. The next prime is 1205234071. The reversal of 1205234055 is 5504325021.

It is a happy number.

It is not a de Polignac number, because 1205234055 - 2⁹ = 1205233543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 460471 + ... + 463080.

It is an arithmetic number, because the mean of its divisors is an integer number (90046320).

Almost surely, 2^1205234055 is an apocalyptic number.

1205234055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1205234055 is a deficient number, since it is larger than the sum of its proper divisors (955877625).

1205234055 is a wasteful number, since it uses less digits than its factorization.

1205234055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923591 (or 923588 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1205234055 is about 34716.4810284683. The cubic root of 1205234055 is about 1064.2013320441.

Adding to 1205234055 its reverse (5504325021), we get a palindrome (6709559076).

The spelling of 1205234055 in words is "one billion, two hundred five million, two hundred thirty-four thousand, fifty-five".