1197144 has 48 divisors (see below), whose sum is σ = 3494400. Its totient is φ = 368064.

The previous prime is 1197121. The next prime is 1197167. The reversal of 1197144 is 4417911.

It is an interprime number because it is at equal distance from previous prime (1197121) and next prime (1197167).

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297 + ... + 1575.

It is an arithmetic number, because the mean of its divisors is an integer number (72800).

2^1197144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1197144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1747200).

1197144 is an abundant number, since it is smaller than the sum of its proper divisors (2297256).

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

1197144 is a wasteful number, since it uses less digits than its factorization.

1197144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304 (or 1297 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 1197144 is about 1094.1407587692. The cubic root of 1197144 is about 106.1814857018.

The spelling of 1197144 in words is "one million, one hundred ninety-seven thousand, one hundred forty-four".