1323008249 has 4 divisors (see below), whose sum is σ = 1341642240. Its totient is φ = 1304374260.

The previous prime is 1323008243. The next prime is 1323008263. The reversal of 1323008249 is 9428003231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1323008249 - 2⁴ = 1323008233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323008243) 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 3 ways as a sum of consecutive naturals, for example, 9316889 + ... + 9317030.

It is an arithmetic number, because the mean of its divisors is an integer number (335410560).

Almost surely, 2^1323008249 is an apocalyptic number.

It is an amenable number.

1323008249 is a deficient number, since it is larger than the sum of its proper divisors (18633991).

1323008249 is an equidigital number, since it uses as much as digits as its factorization.

1323008249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18633990.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1323008249 is about 36373.1803531118. The cubic root of 1323008249 is about 1097.7939946055.

The spelling of 1323008249 in words is "one billion, three hundred twenty-three million, eight thousand, two hundred forty-nine".