1197138 has 8 divisors (see below), whose sum is σ = 2394288. Its totient is φ = 399044.

The previous prime is 1197121. The next prime is 1197167. The reversal of 1197138 is 8317911.

It is a sphenic number, since it is the product of 3 distinct primes.

1197138 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 99756 + ... + 99767.

It is an arithmetic number, because the mean of its divisors is an integer number (299286).

2^1197138 is an apocalyptic number.

1197138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1197138 is a wasteful number, since it uses less digits than its factorization.

1197138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199528.

The product of its digits is 1512, while the sum is 30.

The square root of 1197138 is about 1094.1380168882. The cubic root of 1197138 is about 106.1813083102.

The spelling of 1197138 in words is "one million, one hundred ninety-seven thousand, one hundred thirty-eight".