1091107 has 8 divisors (see below), whose sum is σ = 1146752. Its totient is φ = 1036800.

The previous prime is 1091071. The next prime is 1091119. The reversal of 1091107 is 7011901.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1091107 - 2⁷ = 1090979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1091137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1603 + ... + 2179.

It is an arithmetic number, because the mean of its divisors is an integer number (143344).

2^1091107 is an apocalyptic number.

1091107 is a deficient number, since it is larger than the sum of its proper divisors (55645).

1091107 is an equidigital number, since it uses as much as digits as its factorization.

1091107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669.

The product of its (nonzero) digits is 63, while the sum is 19.

The square root of 1091107 is about 1044.5606732019. The cubic root of 1091107 is about 102.9490746465.

The spelling of 1091107 in words is "one million, ninety-one thousand, one hundred seven".