1089102 has 16 divisors (see below), whose sum is σ = 2489472. Its totient is φ = 311160.

The previous prime is 1089091. The next prime is 1089103. The reversal of 1089102 is 2019801.

It is a super-2 number, since 2×1089102² = 2372286332808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12924 + ... + 13007.

It is an arithmetic number, because the mean of its divisors is an integer number (155592).

2^1089102 is an apocalyptic number.

1089102 is an abundant number, since it is smaller than the sum of its proper divisors (1400370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1089102 is a wasteful number, since it uses less digits than its factorization.

1089102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25943.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1089102 is about 1043.6004982751. The cubic root of 1089102 is about 102.8859768148.

The spelling of 1089102 in words is "one million, eighty-nine thousand, one hundred two".