1089515 has 12 divisors (see below), whose sum is σ = 1521216. Its totient is φ = 746928.

The previous prime is 1089509. The next prime is 1089523. The reversal of 1089515 is 5159801.

It is not a de Polignac number, because 1089515 - 2⁸ = 1089259 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1979 + ... + 2468.

It is an arithmetic number, because the mean of its divisors is an integer number (126768).

2^1089515 is an apocalyptic number.

1089515 is a deficient number, since it is larger than the sum of its proper divisors (431701).

1089515 is an equidigital number, since it uses as much as digits as its factorization.

1089515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466 (or 4459 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 1089515 is about 1043.7983521734. The cubic root of 1089515 is about 102.8989803530.

The spelling of 1089515 in words is "one million, eighty-nine thousand, five hundred fifteen".