1232109 has 12 divisors (see below), whose sum is σ = 1884636. Its totient is φ = 772992.

The previous prime is 1232089. The next prime is 1232171. The reversal of 1232109 is 9012321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 956484 + 275625 = 978^2 + 525^2 .

It is not a de Polignac number, because 1232109 - 2⁷ = 1231981 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1232091 and 1232100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3874 + ... + 4179.

It is an arithmetic number, because the mean of its divisors is an integer number (157053).

2^1232109 is an apocalyptic number.

It is an amenable number.

1232109 is a deficient number, since it is larger than the sum of its proper divisors (652527).

1232109 is a wasteful number, since it uses less digits than its factorization.

1232109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8076 (or 8073 counting only the distinct ones).

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

The square root of 1232109 is about 1110.0040540467. The cubic root of 1232109 is about 107.2053296619.

The spelling of 1232109 in words is "one million, two hundred thirty-two thousand, one hundred nine".