1197612000 has 384 divisors, whose sum is σ = 4700142720. Its totient is φ = 294451200.

The previous prime is 1197611999. The next prime is 1197612023. The reversal of 1197612000 is 2167911.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1403574 + ... + 1404426.

It is an arithmetic number, because the mean of its divisors is an integer number (12239955).

Almost surely, 2^1197612000 is an apocalyptic number.

1197612000 is a gapful number since it is divisible by the number (10) 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 1197612000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2350071360).

1197612000 is an abundant number, since it is smaller than the sum of its proper divisors (3502530720).

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

1197612000 is a wasteful number, since it uses less digits than its factorization.

1197612000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 1197612000 is about 34606.5311754877. The cubic root of 1197612000 is about 1061.9532042325.

Adding to 1197612000 its reverse (2167911), we get a palindrome (1199779911).

The spelling of 1197612000 in words is "one billion, one hundred ninety-seven million, six hundred twelve thousand".