1089202 has 4 divisors (see below), whose sum is σ = 1633806. Its totient is φ = 544600.

The previous prime is 1089197. The next prime is 1089217. The reversal of 1089202 is 2029801.

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

It can be written as a sum of positive squares in only one way, i.e., 1022121 + 67081 = 1011^2 + 259^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272299 + ... + 272302.

2^1089202 is an apocalyptic number.

1089202 is a deficient number, since it is larger than the sum of its proper divisors (544604).

1089202 is an equidigital number, since it uses as much as digits as its factorization.

1089202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544603.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1089202 is about 1043.6484082295. The cubic root of 1089202 is about 102.8891256729.

The spelling of 1089202 in words is "one million, eighty-nine thousand, two hundred two".