1213668007 has 4 divisors (see below), whose sum is σ = 1223224576. Its totient is φ = 1204111440.

The previous prime is 1213667989. The next prime is 1213668031. The reversal of 1213668007 is 7008663121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1213668007 - 2⁷ = 1213667879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213668307) 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, 4778094 + ... + 4778347.

It is an arithmetic number, because the mean of its divisors is an integer number (305806144).

Almost surely, 2^1213668007 is an apocalyptic number.

1213668007 is a deficient number, since it is larger than the sum of its proper divisors (9556569).

1213668007 is an equidigital number, since it uses as much as digits as its factorization.

1213668007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9556568.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1213668007 is about 34837.7382589628. The cubic root of 1213668007 is about 1066.6779099184.

The spelling of 1213668007 in words is "one billion, two hundred thirteen million, six hundred sixty-eight thousand, seven".