1180055047 has 4 divisors (see below), whose sum is σ = 1200056040. Its totient is φ = 1160054056.

The previous prime is 1180055033. The next prime is 1180055069. The reversal of 1180055047 is 7405500811.

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 1180055047 - 2⁷ = 1180054919 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180055087) 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, 10000408 + ... + 10000525.

It is an arithmetic number, because the mean of its divisors is an integer number (300014010).

Almost surely, 2^1180055047 is an apocalyptic number.

1180055047 is a deficient number, since it is larger than the sum of its proper divisors (20000993).

1180055047 is an equidigital number, since it uses as much as digits as its factorization.

1180055047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000992.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 1180055047 is about 34351.9293053534. The cubic root of 1180055047 is about 1056.7382370273.

Adding to 1180055047 its reverse (7405500811), we get a palindrome (8585555858).

The spelling of 1180055047 in words is "one billion, one hundred eighty million, fifty-five thousand, forty-seven".