1131418518 has 8 divisors (see below), whose sum is σ = 2262837048. Its totient is φ = 377139504.

The previous prime is 1131418471. The next prime is 1131418543. The reversal of 1131418518 is 8158141311.

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

1131418518 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94284871 + ... + 94284882.

It is an arithmetic number, because the mean of its divisors is an integer number (282854631).

Almost surely, 2^1131418518 is an apocalyptic number.

1131418518 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1131418518 is a wasteful number, since it uses less digits than its factorization.

1131418518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188569758.

The product of its digits is 3840, while the sum is 33.

The square root of 1131418518 is about 33636.5651932536. The cubic root of 1131418518 is about 1042.0160959442.

Adding to 1131418518 its reverse (8158141311), we get a palindrome (9289559829).

The spelling of 1131418518 in words is "one billion, one hundred thirty-one million, four hundred eighteen thousand, five hundred eighteen".