1341638305 has 16 divisors (see below), whose sum is σ = 1899316224. Its totient is φ = 890303040.

The previous prime is 1341638297. The next prime is 1341638321. The reversal of 1341638305 is 5038361431.

It is not a de Polignac number, because 1341638305 - 2³ = 1341638297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 617182 + ... + 619351.

It is an arithmetic number, because the mean of its divisors is an integer number (118707264).

Almost surely, 2^1341638305 is an apocalyptic number.

It is an amenable number.

1341638305 is a deficient number, since it is larger than the sum of its proper divisors (557677919).

1341638305 is a wasteful number, since it uses less digits than its factorization.

1341638305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236576.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1341638305 is about 36628.3811408585. The cubic root of 1341638305 is about 1102.9228890369.

Adding to 1341638305 its reverse (5038361431), we get a palindrome (6379999736).

The spelling of 1341638305 in words is "one billion, three hundred forty-one million, six hundred thirty-eight thousand, three hundred five".