1341121555 has 16 divisors (see below), whose sum is σ = 1696085280. Its totient is φ = 1015206912.

The previous prime is 1341121549. The next prime is 1341121583. The reversal of 1341121555 is 5551211431.

It is a cyclic number.

It is not a de Polignac number, because 1341121555 - 2⁷ = 1341121427 is a prime.

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, 75267 + ... + 91363.

It is an arithmetic number, because the mean of its divisors is an integer number (106005330).

Almost surely, 2^1341121555 is an apocalyptic number.

1341121555 is a deficient number, since it is larger than the sum of its proper divisors (354963725).

1341121555 is a wasteful number, since it uses less digits than its factorization.

1341121555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16998.

The product of its digits is 3000, while the sum is 28.

The square root of 1341121555 is about 36621.3265051937. The cubic root of 1341121555 is about 1102.7812690018.

Adding to 1341121555 its reverse (5551211431), we get a palindrome (6892332986).

The spelling of 1341121555 in words is "one billion, three hundred forty-one million, one hundred twenty-one thousand, five hundred fifty-five".