1213930617 has 16 divisors (see below), whose sum is σ = 1659032832. Its totient is φ = 789183360.

The previous prime is 1213930609. The next prime is 1213930649. The reversal of 1213930617 is 7160393121.

It is not a de Polignac number, because 1213930617 - 2³ = 1213930609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213930667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23517 + ... + 54597.

It is an arithmetic number, because the mean of its divisors is an integer number (103689552).

Almost surely, 2^1213930617 is an apocalyptic number.

It is an amenable number.

1213930617 is a deficient number, since it is larger than the sum of its proper divisors (445102215).

1213930617 is a wasteful number, since it uses less digits than its factorization.

1213930617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31408.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 1213930617 is about 34841.5071000093. The cubic root of 1213930617 is about 1066.7548392716.

The spelling of 1213930617 in words is "one billion, two hundred thirteen million, nine hundred thirty thousand, six hundred seventeen".