1094531609 has 4 divisors (see below), whose sum is σ = 1094759040. Its totient is φ = 1094304180.

The previous prime is 1094531563. The next prime is 1094531611. The reversal of 1094531609 is 9061354901.

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 1094531609 - 2²⁴ = 1077754393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1094531639) 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, 106337 + ... + 116174.

It is an arithmetic number, because the mean of its divisors is an integer number (273689760).

Almost surely, 2^1094531609 is an apocalyptic number.

It is an amenable number.

1094531609 is a deficient number, since it is larger than the sum of its proper divisors (227431).

1094531609 is an equidigital number, since it uses as much as digits as its factorization.

1094531609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227430.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 1094531609 is about 33083.7060952971. The cubic root of 1094531609 is about 1030.5666938416.

The spelling of 1094531609 in words is "one billion, ninety-four million, five hundred thirty-one thousand, six hundred nine".