1209612 has 12 divisors (see below), whose sum is σ = 2822456. Its totient is φ = 403200.

The previous prime is 1209587. The next prime is 1209617. The reversal of 1209612 is 2169021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1209612² = 2926322381088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1209617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50389 + ... + 50412.

2^1209612 is an apocalyptic number.

1209612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1209612 is an abundant number, since it is smaller than the sum of its proper divisors (1612844).

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

1209612 is a wasteful number, since it uses less digits than its factorization.

1209612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100808 (or 100806 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1209612 is about 1099.8236222231. The cubic root of 1209612 is about 106.5488325508.

The spelling of 1209612 in words is "one million, two hundred nine thousand, six hundred twelve".