1213643614 has 8 divisors (see below), whose sum is σ = 1879190208. Its totient is φ = 587246880.

The previous prime is 1213643597. The next prime is 1213643621. The reversal of 1213643614 is 4163463121.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9787387 + ... + 9787510.

It is an arithmetic number, because the mean of its divisors is an integer number (234898776).

Almost surely, 2^1213643614 is an apocalyptic number.

1213643614 is a deficient number, since it is larger than the sum of its proper divisors (665546594).

1213643614 is a wasteful number, since it uses less digits than its factorization.

1213643614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19574930.

The product of its digits is 10368, while the sum is 31.

The square root of 1213643614 is about 34837.3881627197. The cubic root of 1213643614 is about 1066.6707636344.

The spelling of 1213643614 in words is "one billion, two hundred thirteen million, six hundred forty-three thousand, six hundred fourteen".