1213648214 has 16 divisors (see below), whose sum is σ = 1853184960. Its totient is φ = 595990080.

The previous prime is 1213648201. The next prime is 1213648217. The reversal of 1213648214 is 4128463121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213648217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17504 + ... + 52284.

It is an arithmetic number, because the mean of its divisors is an integer number (115824060).

Almost surely, 2^1213648214 is an apocalyptic number.

1213648214 is a deficient number, since it is larger than the sum of its proper divisors (639536746).

1213648214 is a wasteful number, since it uses less digits than its factorization.

1213648214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35095.

The product of its digits is 9216, while the sum is 32.

The square root of 1213648214 is about 34837.4541836800. The cubic root of 1213648214 is about 1066.6721112786.

The spelling of 1213648214 in words is "one billion, two hundred thirteen million, six hundred forty-eight thousand, two hundred fourteen".