1178145548 has 6 divisors (see below), whose sum is σ = 2061754716. Its totient is φ = 589072772.

The previous prime is 1178145547. The next prime is 1178145589. The reversal of 1178145548 is 8455418711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1178145499 and 1178145508.

It is not an unprimeable number, because it can be changed into a prime (1178145547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 147268190 + ... + 147268197.

It is an arithmetic number, because the mean of its divisors is an integer number (343625786).

Almost surely, 2^1178145548 is an apocalyptic number.

It is an amenable number.

1178145548 is a deficient number, since it is larger than the sum of its proper divisors (883609168).

1178145548 is a wasteful number, since it uses less digits than its factorization.

1178145548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294536391 (or 294536389 counting only the distinct ones).

The product of its digits is 179200, while the sum is 44.

The square root of 1178145548 is about 34324.1248686693. The cubic root of 1178145548 is about 1056.1679444303.

The spelling of 1178145548 in words is "one billion, one hundred seventy-eight million, one hundred forty-five thousand, five hundred forty-eight".