1197312 has 36 divisors (see below), whose sum is σ = 3188640. Its totient is φ = 398848.

The previous prime is 1197307. The next prime is 1197337. The reversal of 1197312 is 2137911.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12 + ... + 1547.

2^1197312 is an apocalyptic number.

1197312 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 1197312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1594320).

1197312 is an abundant number, since it is smaller than the sum of its proper divisors (1991328).

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

1197312 is an equidigital number, since it uses as much as digits as its factorization.

1197312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578 (or 1564 counting only the distinct ones).

The product of its digits is 378, while the sum is 24.

The square root of 1197312 is about 1094.2175286478. The cubic root of 1197312 is about 106.1864524269.

The spelling of 1197312 in words is "one million, one hundred ninety-seven thousand, three hundred twelve".