1197812016 has 40 divisors (see below), whose sum is σ = 3438165360. Its totient is φ = 399270528.

The previous prime is 1197811991. The next prime is 1197812023. The reversal of 1197812016 is 6102187911.

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

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 7 ways as a sum of consecutive naturals, for example, 1385925 + ... + 1386788.

It is an arithmetic number, because the mean of its divisors is an integer number (85954134).

Almost surely, 2^1197812016 is an apocalyptic number.

1197812016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1197812016 is an abundant number, since it is smaller than the sum of its proper divisors (2240353344).

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

1197812016 is a wasteful number, since it uses less digits than its factorization.

1197812016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772730 (or 2772718 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 36.

The square root of 1197812016 is about 34609.4209139650. The cubic root of 1197812016 is about 1062.0123207099.

Adding to 1197812016 its reverse (6102187911), we get a palindrome (7299999927).

The spelling of 1197812016 in words is "one billion, one hundred ninety-seven million, eight hundred twelve thousand, sixteen".