1213546330 has 8 divisors (see below), whose sum is σ = 2184383412. Its totient is φ = 485418528.

The previous prime is 1213546289. The next prime is 1213546333. The reversal of 1213546330 is 336453121.

It can be written as a sum of positive squares in 2 ways, for example, as 1160969329 + 52577001 = 34073^2 + 7251^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1213546333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60677307 + ... + 60677326.

Almost surely, 2^1213546330 is an apocalyptic number.

1213546330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213546330 is a deficient number, since it is larger than the sum of its proper divisors (970837082).

1213546330 is a wasteful number, since it uses less digits than its factorization.

1213546330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121354640.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1213546330 is about 34835.9918762191. The cubic root of 1213546330 is about 1066.6422619199.

Adding to 1213546330 its reverse (336453121), we get a palindrome (1549999451).

The spelling of 1213546330 in words is "one billion, two hundred thirteen million, five hundred forty-six thousand, three hundred thirty".