1089182231 has 4 divisors (see below), whose sum is σ = 1153251792. Its totient is φ = 1025112672.

The previous prime is 1089182219. The next prime is 1089182279. The reversal of 1089182231 is 1322819801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322819801 = 7351 ⋅179951.

It is a cyclic number.

It is not a de Polignac number, because 1089182231 - 2⁶ = 1089182167 is a prime.

It is a super-2 number, since 2×1089182231² = 2372635864652274722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1089182191 and 1089182200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089182291) 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, 32034755 + ... + 32034788.

It is an arithmetic number, because the mean of its divisors is an integer number (288312948).

Almost surely, 2^1089182231 is an apocalyptic number.

1089182231 is a deficient number, since it is larger than the sum of its proper divisors (64069561).

1089182231 is an equidigital number, since it uses as much as digits as its factorization.

1089182231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64069560.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 1089182231 is about 33002.7609602591. The cubic root of 1089182231 is about 1028.8850319039.

The spelling of 1089182231 in words is "one billion, eighty-nine million, one hundred eighty-two thousand, two hundred thirty-one".