1209132 has 18 divisors (see below), whose sum is σ = 3056508. Its totient is φ = 403032.

The previous prime is 1209121. The next prime is 1209139. The reversal of 1209132 is 2319021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1209139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16758 + ... + 16829.

It is an arithmetic number, because the mean of its divisors is an integer number (169806).

2^1209132 is an apocalyptic number.

1209132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1209132 is an abundant number, since it is smaller than the sum of its proper divisors (1847376).

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

1209132 is a wasteful number, since it uses less digits than its factorization.

1209132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33597 (or 33592 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1209132 is about 1099.6053837627. The cubic root of 1209132 is about 106.5347370651.

The spelling of 1209132 in words is "one million, two hundred nine thousand, one hundred thirty-two".