1168222447 has 4 divisors (see below), whose sum is σ = 1335111376. Its totient is φ = 1001333520.

The previous prime is 1168222441. The next prime is 1168222477. The reversal of 1168222447 is 7442228611.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1168222447 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 (1168222441) 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, 83444454 + ... + 83444467.

It is an arithmetic number, because the mean of its divisors is an integer number (333777844).

Almost surely, 2^1168222447 is an apocalyptic number.

1168222447 is a deficient number, since it is larger than the sum of its proper divisors (166888929).

1168222447 is an equidigital number, since it uses as much as digits as its factorization.

1168222447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166888928.

The product of its digits is 43008, while the sum is 37.

The square root of 1168222447 is about 34179.2692578411. The cubic root of 1168222447 is about 1053.1943378544.

The spelling of 1168222447 in words is "one billion, one hundred sixty-eight million, two hundred twenty-two thousand, four hundred forty-seven".