1213055132 has 6 divisors (see below), whose sum is σ = 2122846488. Its totient is φ = 606527564.

The previous prime is 1213055119. The next prime is 1213055159. The reversal of 1213055132 is 2315503121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1213055098 and 1213055107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151631888 + ... + 151631895.

It is an arithmetic number, because the mean of its divisors is an integer number (353807748).

Almost surely, 2^1213055132 is an apocalyptic number.

It is an amenable number.

1213055132 is a deficient number, since it is larger than the sum of its proper divisors (909791356).

1213055132 is a wasteful number, since it uses less digits than its factorization.

1213055132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303263787 (or 303263785 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1213055132 is about 34828.9410117506. The cubic root of 1213055132 is about 1066.4983302496.

Adding to 1213055132 its reverse (2315503121), we get a palindrome (3528558253).

The spelling of 1213055132 in words is "one billion, two hundred thirteen million, fifty-five thousand, one hundred thirty-two".