1197243612 has 24 divisors (see below), whose sum is σ = 3103965200. Its totient is φ = 399081168.

The previous prime is 1197243611. The next prime is 1197243623. The reversal of 1197243612 is 2163427911.

1197243612 is a `hidden beast` number, since 1 + 19 + 7 + 24 + 3 + 612 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197243611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5542687 + ... + 5542902.

Almost surely, 2^1197243612 is an apocalyptic number.

1197243612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1197243612 is an abundant number, since it is smaller than the sum of its proper divisors (1906721588).

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

1197243612 is a wasteful number, since it uses less digits than its factorization.

1197243612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11085602 (or 11085594 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1197243612 is about 34601.2082447998. The cubic root of 1197243612 is about 1061.8443067108.

The spelling of 1197243612 in words is "one billion, one hundred ninety-seven million, two hundred forty-three thousand, six hundred twelve".