1089307193 has 16 divisors (see below), whose sum is σ = 1216536720. Its totient is φ = 968454144.

The previous prime is 1089307169. The next prime is 1089307213. The reversal of 1089307193 is 3917039801.

It can be written as a sum of positive squares in 8 ways, for example, as 454670329 + 634636864 = 21323^2 + 25192^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089307193 - 2⁸ = 1089306937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1089307193.

It is not an unprimeable number, because it can be changed into a prime (1089307693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159905 + ... + 166577.

It is an arithmetic number, because the mean of its divisors is an integer number (76033545).

Almost surely, 2^1089307193 is an apocalyptic number.

1089307193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1089307193 is a deficient number, since it is larger than the sum of its proper divisors (127229527).

1089307193 is a wasteful number, since it uses less digits than its factorization.

1089307193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7148.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 1089307193 is about 33004.6541112007. The cubic root of 1089307193 is about 1028.9243784311.

The spelling of 1089307193 in words is "one billion, eighty-nine million, three hundred seven thousand, one hundred ninety-three".