1181618124 has 12 divisors (see below), whose sum is σ = 2757108984. Its totient is φ = 393872704.

The previous prime is 1181618111. The next prime is 1181618147. The reversal of 1181618124 is 4218161811.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49234077 + ... + 49234100.

It is an arithmetic number, because the mean of its divisors is an integer number (229759082).

Almost surely, 2^1181618124 is an apocalyptic number.

It is an amenable number.

1181618124 is an abundant number, since it is smaller than the sum of its proper divisors (1575490860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1181618124 is a wasteful number, since it uses less digits than its factorization.

1181618124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98468184 (or 98468182 counting only the distinct ones).

The product of its digits is 3072, while the sum is 33.

The square root of 1181618124 is about 34374.6727111692. The cubic root of 1181618124 is about 1057.2046091897.

Adding to 1181618124 its reverse (4218161811), we get a palindrome (5399779935).

The spelling of 1181618124 in words is "one billion, one hundred eighty-one million, six hundred eighteen thousand, one hundred twenty-four".