1089225217 has 16 divisors (see below), whose sum is σ = 1177696960. Its totient is φ = 1004052672.

The previous prime is 1089225209. The next prime is 1089225227. The reversal of 1089225217 is 7125229801.

It is a cyclic number.

It is not a de Polignac number, because 1089225217 - 2³ = 1089225209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1089225227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223903 + ... + 228715.

It is an arithmetic number, because the mean of its divisors is an integer number (73606060).

Almost surely, 2^1089225217 is an apocalyptic number.

It is an amenable number.

1089225217 is a deficient number, since it is larger than the sum of its proper divisors (88471743).

1089225217 is a wasteful number, since it uses less digits than its factorization.

1089225217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5152.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 1089225217 is about 33003.4122023769. The cubic root of 1089225217 is about 1028.8985671566.

The spelling of 1089225217 in words is "one billion, eighty-nine million, two hundred twenty-five thousand, two hundred seventeen".