1147892112 has 60 divisors (see below), whose sum is σ = 3222342864. Its totient is φ = 381458880.

The previous prime is 1147892111. The next prime is 1147892209. The reversal of 1147892112 is 2112987411.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1147892111) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 35623 + ... + 59705.

Almost surely, 2^1147892112 is an apocalyptic number.

1147892112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1147892112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1611171432).

1147892112 is an abundant number, since it is smaller than the sum of its proper divisors (2074450752).

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

1147892112 is a wasteful number, since it uses less digits than its factorization.

1147892112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24428 (or 24419 counting only the distinct ones).

The product of its digits is 8064, while the sum is 36.

The square root of 1147892112 is about 33880.5565479672. The cubic root of 1147892112 is about 1047.0490421825.

The spelling of 1147892112 in words is "one billion, one hundred forty-seven million, eight hundred ninety-two thousand, one hundred twelve".