1173391 has 8 divisors (see below), whose sum is σ = 1296864. Its totient is φ = 1056000.

The previous prime is 1173373. The next prime is 1173397. The reversal of 1173391 is 1933711.

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

It is a cyclic number.

It is not a de Polignac number, because 1173391 - 2¹¹ = 1171343 is a prime.

It is a Duffinian number.

1173391 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1110 + ... + 1891.

It is an arithmetic number, because the mean of its divisors is an integer number (162108).

2^1173391 is an apocalyptic number.

1173391 is a deficient number, since it is larger than the sum of its proper divisors (123473).

1173391 is a wasteful number, since it uses less digits than its factorization.

1173391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041.

The product of its digits is 567, while the sum is 25.

The square root of 1173391 is about 1083.2317388260. The cubic root of 1173391 is about 105.4745264673.

The spelling of 1173391 in words is "one million, one hundred seventy-three thousand, three hundred ninety-one".