1097915 has 32 divisors (see below), whose sum is σ = 1720320. Its totient is φ = 653184.

The previous prime is 1097909. The next prime is 1097923. The reversal of 1097915 is 5197901.

It is not a de Polignac number, because 1097915 - 2⁶ = 1097851 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8582 + ... + 8708.

It is an arithmetic number, because the mean of its divisors is an integer number (53760).

2^1097915 is an apocalyptic number.

1097915 is a deficient number, since it is larger than the sum of its proper divisors (622405).

1097915 is a wasteful number, since it uses less digits than its factorization.

1097915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 1097915 is about 1047.8143919607. The cubic root of 1097915 is about 103.1627489596.

The spelling of 1097915 in words is "one million, ninety-seven thousand, nine hundred fifteen".