1323530906 has 16 divisors (see below), whose sum is σ = 2072476800. Its totient is φ = 632729328.

The previous prime is 1323530851. The next prime is 1323530909. The reversal of 1323530906 is 6090353231.

It is not an unprimeable number, because it can be changed into a prime (1323530909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148340 + ... + 157008.

It is an arithmetic number, because the mean of its divisors is an integer number (129529800).

Almost surely, 2^1323530906 is an apocalyptic number.

1323530906 is a deficient number, since it is larger than the sum of its proper divisors (748945894).

1323530906 is a wasteful number, since it uses less digits than its factorization.

1323530906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12013.

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 1323530906 is about 36380.3642917440. The cubic root of 1323530906 is about 1097.9385374625.

The spelling of 1323530906 in words is "one billion, three hundred twenty-three million, five hundred thirty thousand, nine hundred six".