1217662313 has 8 divisors (see below), whose sum is σ = 1409230080. Its totient is φ = 1030498560.

The previous prime is 1217662307. The next prime is 1217662331. The reversal of 1217662313 is 3132667121.

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

It is not a de Polignac number, because 1217662313 - 2²⁸ = 949226857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1217662313.

It is not an unprimeable number, because it can be changed into a prime (1217662393) 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, 1100408 + ... + 1101513.

It is an arithmetic number, because the mean of its divisors is an integer number (176153760).

Almost surely, 2^1217662313 is an apocalyptic number.

It is an amenable number.

1217662313 is a deficient number, since it is larger than the sum of its proper divisors (191567767).

1217662313 is an equidigital number, since it uses as much as digits as its factorization.

1217662313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202007.

The product of its digits is 9072, while the sum is 32.

The square root of 1217662313 is about 34895.0184553612. The cubic root of 1217662313 is about 1067.8468106976.

The spelling of 1217662313 in words is "one billion, two hundred seventeen million, six hundred sixty-two thousand, three hundred thirteen".