1369222009 has 3 divisors (see below), whose sum is σ = 1369259013. Its totient is φ = 1369185006.

The previous prime is 1369222003. The next prime is 1369222021. The reversal of 1369222009 is 9002229631.

The square root of 1369222009 is 37003.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9002229631 = 16931 ⋅531701.

It is not a de Polignac number, because 1369222009 - 2⁷ = 1369221881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1369222003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18502 + ... + 55504.

It is an arithmetic number, because the mean of its divisors is an integer number (456419671).

Almost surely, 2^1369222009 is an apocalyptic number.

1369222009 is the 37003-rd square number.

1369222009 is the 18502-nd centered octagonal number.

It is an amenable number.

1369222009 is a deficient number, since it is larger than the sum of its proper divisors (37004).

1369222009 is an frugal number, since it uses more digits than its factorization.

1369222009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74006 (or 37003 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The cubic root of 1369222009 is about 1110.4302660610.

Multiplying 1369222009 by its product of nonzero digits (11664), we get a square (15970605512976 = 3996324²).

The spelling of 1369222009 in words is "one billion, three hundred sixty-nine million, two hundred twenty-two thousand, nine".