1214425646 has 8 divisors (see below), whose sum is σ = 2081872560. Its totient is φ = 520468128.

The previous prime is 1214425633. The next prime is 1214425657. The reversal of 1214425646 is 6465244121.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 43372331 + ... + 43372358.

It is an arithmetic number, because the mean of its divisors is an integer number (260234070).

Almost surely, 2^1214425646 is an apocalyptic number.

1214425646 is a deficient number, since it is larger than the sum of its proper divisors (867446914).

1214425646 is an equidigital number, since it uses as much as digits as its factorization.

1214425646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86744698.

The product of its digits is 46080, while the sum is 35.

The square root of 1214425646 is about 34848.6103883641. The cubic root of 1214425646 is about 1066.8998236194.

Adding to 1214425646 its reverse (6465244121), we get a palindrome (7679669767).

The spelling of 1214425646 in words is "one billion, two hundred fourteen million, four hundred twenty-five thousand, six hundred forty-six".