1118501912 has 64 divisors (see below), whose sum is σ = 2336061600. Its totient is φ = 497802240.

The previous prime is 1118501903. The next prime is 1118501929. The reversal of 1118501912 is 2191058111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1008014 + ... + 1009122.

Almost surely, 2^1118501912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118501912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1168030800).

1118501912 is an abundant number, since it is smaller than the sum of its proper divisors (1217559688).

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

1118501912 is a wasteful number, since it uses less digits than its factorization.

1118501912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 29.

The square root of 1118501912 is about 33444.0116014811. The cubic root of 1118501912 is about 1038.0355891832.

The spelling of 1118501912 in words is "one billion, one hundred eighteen million, five hundred one thousand, nine hundred twelve".