1131343689 has 32 divisors (see below), whose sum is σ = 1747567360. Its totient is φ = 637673472.

The previous prime is 1131343687. The next prime is 1131343691. The reversal of 1131343689 is 9863431311.

It is an interprime number because it is at equal distance from previous prime (1131343687) and next prime (1131343691).

It is not a de Polignac number, because 1131343689 - 2¹ = 1131343687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131343687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 759057 + ... + 760545.

It is an arithmetic number, because the mean of its divisors is an integer number (54611480).

Almost surely, 2^1131343689 is an apocalyptic number.

It is an amenable number.

1131343689 is a deficient number, since it is larger than the sum of its proper divisors (616223671).

1131343689 is a wasteful number, since it uses less digits than its factorization.

1131343689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969.

The product of its digits is 46656, while the sum is 39.

The square root of 1131343689 is about 33635.4528585539. The cubic root of 1131343689 is about 1041.9931233835.

The spelling of 1131343689 in words is "one billion, one hundred thirty-one million, three hundred forty-three thousand, six hundred eighty-nine".