1097165 has 4 divisors (see below), whose sum is σ = 1316604. Its totient is φ = 877728.

The previous prime is 1097147. The next prime is 1097179. The reversal of 1097165 is 5617901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 609961 + 487204 = 781^2 + 698^2 .

It is a cyclic number.

It is not a de Polignac number, because 1097165 - 2⁶ = 1097101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109712 + ... + 109721.

It is an arithmetic number, because the mean of its divisors is an integer number (329151).

2^1097165 is an apocalyptic number.

It is an amenable number.

1097165 is a deficient number, since it is larger than the sum of its proper divisors (219439).

1097165 is an equidigital number, since it uses as much as digits as its factorization.

1097165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219438.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 1097165 is about 1047.4564430085. The cubic root of 1097165 is about 103.1392530040.

The spelling of 1097165 in words is "one million, ninety-seven thousand, one hundred sixty-five".