1089195 has 8 divisors (see below), whose sum is σ = 1742736. Its totient is φ = 580896.

The previous prime is 1089191. The next prime is 1089197. The reversal of 1089195 is 5919801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1089195 - 2² = 1089191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1089191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36292 + ... + 36321.

It is an arithmetic number, because the mean of its divisors is an integer number (217842).

2^1089195 is an apocalyptic number.

1089195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1089195 is a deficient number, since it is larger than the sum of its proper divisors (653541).

1089195 is an equidigital number, since it uses as much as digits as its factorization.

1089195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72621.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 1089195 is about 1043.6450546043. The cubic root of 1089195 is about 102.8889052591. Note that the first 3 decimals are identical.

The spelling of 1089195 in words is "one million, eighty-nine thousand, one hundred ninety-five".