1305412055 has 4 divisors (see below), whose sum is σ = 1566494472. Its totient is φ = 1044329640.

The previous prime is 1305412051. The next prime is 1305412067. The reversal of 1305412055 is 5502145031.

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

It is not a de Polignac number, because 1305412055 - 2² = 1305412051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305412051) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 130541201 + ... + 130541210.

It is an arithmetic number, because the mean of its divisors is an integer number (391623618).

Almost surely, 2^1305412055 is an apocalyptic number.

1305412055 is a deficient number, since it is larger than the sum of its proper divisors (261082417).

1305412055 is an equidigital number, since it uses as much as digits as its factorization.

1305412055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261082416.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1305412055 is about 36130.4865037824. The cubic root of 1305412055 is about 1092.9053190815.

Adding to 1305412055 its reverse (5502145031), we get a palindrome (6807557086).

The spelling of 1305412055 in words is "one billion, three hundred five million, four hundred twelve thousand, fifty-five".