1131369 has 4 divisors (see below), whose sum is σ = 1508496. Its totient is φ = 754244.

The previous prime is 1131353. The next prime is 1131379. The reversal of 1131369 is 9631311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1131369 - 2⁴ = 1131353 is a prime.

It is a super-2 number, since 2×1131369² = 2559991628322, which contains 22 as substring.

It is a D-number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1131329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188559 + ... + 188564.

It is an arithmetic number, because the mean of its divisors is an integer number (377124).

2^1131369 is an apocalyptic number.

It is an amenable number.

1131369 is a deficient number, since it is larger than the sum of its proper divisors (377127).

1131369 is an equidigital number, since it uses as much as digits as its factorization.

1131369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377126.

The product of its digits is 486, while the sum is 24.

The square root of 1131369 is about 1063.6583097969. The cubic root of 1131369 is about 104.2000893993.

The spelling of 1131369 in words is "one million, one hundred thirty-one thousand, three hundred sixty-nine".