1122309 has 16 divisors (see below), whose sum is σ = 1679040. Its totient is φ = 740880.

The previous prime is 1122287. The next prime is 1122367. The reversal of 1122309 is 9032211.

It is a happy number.

It is not a de Polignac number, because 1122309 - 2⁷ = 1122181 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1122291 and 1122300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5214 + ... + 5424.

It is an arithmetic number, because the mean of its divisors is an integer number (104940).

2^1122309 is an apocalyptic number.

It is an amenable number.

1122309 is a deficient number, since it is larger than the sum of its proper divisors (556731).

1122309 is a wasteful number, since it uses less digits than its factorization.

1122309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 411 counting only the distinct ones).

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

The square root of 1122309 is about 1059.3908627131. The cubic root of 1122309 is about 103.9211989365.

It can be divided in two parts, 1122 and 309, that added together give a triangular number (1431 = T₅₃).

The spelling of 1122309 in words is "one million, one hundred twenty-two thousand, three hundred nine".