1131394 has 8 divisors (see below), whose sum is σ = 1851408. Its totient is φ = 514260.

The previous prime is 1131379. The next prime is 1131397. The reversal of 1131394 is 4931311.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 51427 = 1131394 / (1 + 1 + 3 + 1 + 3 + 9 + 4).

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1131397) by changing a digit.

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, 25692 + ... + 25735.

It is an arithmetic number, because the mean of its divisors is an integer number (231426).

2^1131394 is an apocalyptic number.

1131394 is a deficient number, since it is larger than the sum of its proper divisors (720014).

1131394 is a wasteful number, since it uses less digits than its factorization.

1131394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51440.

The product of its digits is 324, while the sum is 22.

The square root of 1131394 is about 1063.6700616263. The cubic root of 1131394 is about 104.2008569011.

The spelling of 1131394 in words is "one million, one hundred thirty-one thousand, three hundred ninety-four".