1131395 has 8 divisors (see below), whose sum is σ = 1391040. Its totient is φ = 882880.

The previous prime is 1131379. The next prime is 1131397. The reversal of 1131395 is 5931311.

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

It is not a de Polignac number, because 1131395 - 2⁴ = 1131379 is a prime.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 1131395.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2555 + ... + 2964.

It is an arithmetic number, because the mean of its divisors is an integer number (173880).

2^1131395 is an apocalyptic number.

1131395 is a deficient number, since it is larger than the sum of its proper divisors (259645).

1131395 is an equidigital number, since it uses as much as digits as its factorization.

1131395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5565.

The product of its digits is 405, while the sum is 23.

The square root of 1131395 is about 1063.6705316967. The cubic root of 1131395 is about 104.2008876009.

The spelling of 1131395 in words is "one million, one hundred thirty-one thousand, three hundred ninety-five".