1178822545 has 8 divisors (see below), whose sum is σ = 1419967296. Its totient is φ = 939471216.

The previous prime is 1178822543. The next prime is 1178822549. The reversal of 1178822545 is 5452288711.

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

It is a cyclic number.

It is not a de Polignac number, because 1178822545 - 2¹ = 1178822543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1178822543) 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, 446907 + ... + 449536.

It is an arithmetic number, because the mean of its divisors is an integer number (177495912).

Almost surely, 2^1178822545 is an apocalyptic number.

It is an amenable number.

1178822545 is a deficient number, since it is larger than the sum of its proper divisors (241144751).

1178822545 is an equidigital number, since it uses as much as digits as its factorization.

1178822545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896711.

The product of its digits is 179200, while the sum is 43.

The square root of 1178822545 is about 34333.9852769818. The cubic root of 1178822545 is about 1056.3702073899.

The spelling of 1178822545 in words is "one billion, one hundred seventy-eight million, eight hundred twenty-two thousand, five hundred forty-five".