1213055133 has 8 divisors (see below), whose sum is σ = 1702533600. Its totient is φ = 766140048.

The previous prime is 1213055119. The next prime is 1213055159. The reversal of 1213055133 is 3315503121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1213055133 - 2⁴ = 1213055117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213055533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10640778 + ... + 10640891.

It is an arithmetic number, because the mean of its divisors is an integer number (212816700).

Almost surely, 2^1213055133 is an apocalyptic number.

It is an amenable number.

1213055133 is a deficient number, since it is larger than the sum of its proper divisors (489478467).

1213055133 is a wasteful number, since it uses less digits than its factorization.

1213055133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21281691.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1213055133 is about 34828.9410261064. The cubic root of 1213055133 is about 1066.4983305426.

Adding to 1213055133 its reverse (3315503121), we get a palindrome (4528558254).

The spelling of 1213055133 in words is "one billion, two hundred thirteen million, fifty-five thousand, one hundred thirty-three".